91057602 has 16 divisors (see below), whose sum is σ = 187990272. Its totient is φ = 29373360.

The previous prime is 91057601. The next prime is 91057663. The reversal of 91057602 is 20675019.

It is a self number, because there is not a number n which added to its sum of digits gives 91057602.

It is not an unprimeable number, because it can be changed into a prime (91057601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244593 + ... + 244964.

It is an arithmetic number, because the mean of its divisors is an integer number (11749392).

Almost surely, 2^91057602 is an apocalyptic number.

91057602 is an abundant number, since it is smaller than the sum of its proper divisors (96932670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91057602 is a wasteful number, since it uses less digits than its factorization.

91057602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489593.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 91057602 is about 9542.4107017043. The cubic root of 91057602 is about 449.8890294269.

The spelling of 91057602 in words is "ninety-one million, fifty-seven thousand, six hundred two".