91800968 has 32 divisors (see below), whose sum is σ = 201519360. Its totient is φ = 38382720.

The previous prime is 91800953. The next prime is 91801019. The reversal of 91800968 is 86900819.

It is a Harshad number since it is a multiple of its sum of digits (41).

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, 17696 + ... + 22287.

It is an arithmetic number, because the mean of its divisors is an integer number (6297480).

Almost surely, 2^91800968 is an apocalyptic number.

It is an amenable number.

91800968 is an abundant number, since it is smaller than the sum of its proper divisors (109718392).

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

91800968 is a wasteful number, since it uses less digits than its factorization.

91800968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40037 (or 40033 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 91800968 is about 9581.2821688958. The cubic root of 91800968 is about 451.1099644511.

The spelling of 91800968 in words is "ninety-one million, eight hundred thousand, nine hundred sixty-eight".