91375976 has 16 divisors (see below), whose sum is σ = 171471300. Its totient is φ = 45650304.

The previous prime is 91375961. The next prime is 91376009. The reversal of 91375976 is 67957319.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 70123876 + 21252100 = 8374^2 + 4610^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 91375976.

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, 7436 + ... + 15428.

Almost surely, 2^91375976 is an apocalyptic number.

It is an amenable number.

91375976 is a deficient number, since it is larger than the sum of its proper divisors (80095324).

91375976 is a wasteful number, since it uses less digits than its factorization.

91375976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9428 (or 9424 counting only the distinct ones).

The product of its digits is 357210, while the sum is 47.

The square root of 91375976 is about 9559.0781982365. The cubic root of 91375976 is about 450.4127505179.

The spelling of 91375976 in words is "ninety-one million, three hundred seventy-five thousand, nine hundred seventy-six".