91992402 has 16 divisors (see below), whose sum is σ = 204427680. Its totient is φ = 30664116.

The previous prime is 91992359. The next prime is 91992421. The reversal of 91992402 is 20429919.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 851728 + ... + 851835.

It is an arithmetic number, because the mean of its divisors is an integer number (12776730).

Almost surely, 2^91992402 is an apocalyptic number.

91992402 is an abundant number, since it is smaller than the sum of its proper divisors (112435278).

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

91992402 is a wasteful number, since it uses less digits than its factorization.

91992402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703574 (or 1703568 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 91992402 is about 9591.2669653180. The cubic root of 91992402 is about 451.4233156372.

The spelling of 91992402 in words is "ninety-one million, nine hundred ninety-two thousand, four hundred two".