91916908 has 24 divisors (see below), whose sum is σ = 170478000. Its totient is φ = 43242048.

The previous prime is 91916879. The next prime is 91916911. The reversal of 91916908 is 80961919.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

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, 7266 + ... + 15382.

It is an arithmetic number, because the mean of its divisors is an integer number (7103250).

Almost surely, 2^91916908 is an apocalyptic number.

It is an amenable number.

91916908 is a deficient number, since it is larger than the sum of its proper divisors (78561092).

91916908 is a wasteful number, since it uses less digits than its factorization.

91916908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8289 (or 8287 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 43.

The square root of 91916908 is about 9587.3305982427. The cubic root of 91916908 is about 451.2997942816.

The spelling of 91916908 in words is "ninety-one million, nine hundred sixteen thousand, nine hundred eight".