91791464 has 16 divisors (see below), whose sum is σ = 172458720. Its totient is φ = 45802480.

The previous prime is 91791457. The next prime is 91791473. The reversal of 91791464 is 46419719.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7382 + ... + 15429.

It is an arithmetic number, because the mean of its divisors is an integer number (10778670).

Almost surely, 2^91791464 is an apocalyptic number.

It is an amenable number.

91791464 is a deficient number, since it is larger than the sum of its proper divisors (80667256).

91791464 is a wasteful number, since it uses less digits than its factorization.

91791464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23320 (or 23316 counting only the distinct ones).

The product of its digits is 54432, while the sum is 41.

The square root of 91791464 is about 9580.7861890348. The cubic root of 91791464 is about 451.0943963616.

The spelling of 91791464 in words is "ninety-one million, seven hundred ninety-one thousand, four hundred sixty-four".