The death toll rose to 39 on Saturday – 29 men and 10 women, the government said, while at least 10 are missing.
Hundreds of thousands of people remain without power and water.
Otis made landfall on the Pacific coast on Wednesday, with winds reaching 165mph (266 km/h). It had intensified from a tropical storm into a category five hurricane – the most severe category – in just 12 hours.
Acapulco was among the areas worst hit in Mexico, with 80% of the resort’s hotels damaged and streets flooded.
Some 17,000 soldiers and police have been deployed in the Mexican resort city of Acapulco, where there has been widespread looting since a powerful hurricane hit the region.
Videos show people taking food and water from shops, while others walk away with expensive electronic items and clothes from shopping centres.
Kristian Vera stood on an Acapulco beach Saturday looking out toward dozens of sunken boats, including three of her own, all marked by floating buoys or just poking out of the water.
