The defender has admitted his surprise at finding the likes of Leicester and West Ham in the top four.
City are currently top of the Premier League table after 11 games of the season, although it is only goal difference that sees them at the summit as they sit level on points with Arsenal.
They had started the season on fire and were widely expected to run away with the title, but have slowed down since then, with Sunday’s 0-0 draw with Aston Villa one of several instances of dropped points this term.
And Otamendi says it is not easy to be in the position they are in, but he remains confident that that can lead from the front.
"It's not easy to be in the position that we are in at the moment because everyone looks at you as the principle candidate for winning the title,” he told ESPN.co.uk.
"Anyway, we are a strong minded team and we know how to handle that pressure. It's better to have that feeling because we are ahead of everyone and that means that we are doing our work correctly.”
The defender has also admitted his shock at the competitiveness of the Premier League this season, with several surprise teams currently perched towards the top of the table.
A particular surprise has been the rise of Leicester City, who have started in fine form and currently find themselves third in the table and just a point behind City, despite having battled against relegation last season.
West Ham United are enjoying a similarly strong start, while Tottenham Hotspur have continued to progress under Mauricio Pochettino, and Otamendi has admitted his surprise at the seasons they are having.
"It's normal to see Arsenal there and also Manchester United," he added.
"Maybe Leicester is a surprise, and a little bit behind them is Tottenham, who are getting better season after season and another surprise may be West Ham United."