91982394 has 48 divisors (see below), whose sum is σ = 235123200. Its totient is φ = 25431840.

The previous prime is 91982347. The next prime is 91982411. The reversal of 91982394 is 49328919.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7869 + ... + 15680.

It is an arithmetic number, because the mean of its divisors is an integer number (4898400).

Almost surely, 2^91982394 is an apocalyptic number.

91982394 is an abundant number, since it is smaller than the sum of its proper divisors (143140806).

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

91982394 is a wasteful number, since it uses less digits than its factorization.

91982394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23595 (or 23592 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 91982394 is about 9590.7452265192. The cubic root of 91982394 is about 451.4069446896.

The spelling of 91982394 in words is "ninety-one million, nine hundred eighty-two thousand, three hundred ninety-four".