91992092 has 12 divisors (see below), whose sum is σ = 163715160. Its totient is φ = 45216336.

The previous prime is 91992077. The next prime is 91992119. The reversal of 91992092 is 29029919.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194663 + ... + 195134.

It is an arithmetic number, because the mean of its divisors is an integer number (13642930).

Almost surely, 2^91992092 is an apocalyptic number.

It is an amenable number.

91992092 is a deficient number, since it is larger than the sum of its proper divisors (71723068).

91992092 is a wasteful number, since it uses less digits than its factorization.

91992092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389860 (or 389858 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 41.

The square root of 91992092 is about 9591.2508047699. The cubic root of 91992092 is about 451.4228085613.

The spelling of 91992092 in words is "ninety-one million, nine hundred ninety-two thousand, ninety-two".