91792457 has 12 divisors (see below), whose sum is σ = 97156608. Its totient is φ = 86595000.

The previous prime is 91792451. The next prime is 91792483. The reversal of 91792457 is 75429719.

It is not a de Polignac number, because 91792457 - 2²² = 87598153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91792451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 365582 + ... + 365832.

It is an arithmetic number, because the mean of its divisors is an integer number (8096384).

Almost surely, 2^91792457 is an apocalyptic number.

It is an amenable number.

91792457 is a deficient number, since it is larger than the sum of its proper divisors (5364151).

91792457 is an equidigital number, since it uses as much as digits as its factorization.

91792457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580 (or 329 counting only the distinct ones).

The product of its digits is 158760, while the sum is 44.

The square root of 91792457 is about 9580.8380113641. The cubic root of 91792457 is about 451.0960230020.

The spelling of 91792457 in words is "ninety-one million, seven hundred ninety-two thousand, four hundred fifty-seven".