91316904 has 32 divisors (see below), whose sum is σ = 260905920. Its totient is φ = 26090496.

The previous prime is 91316893. The next prime is 91316987. The reversal of 91316904 is 40961319.

It is a super-2 number, since 2×91316904² = 16677553912290432, which contains 22 as substring.

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, 271609 + ... + 271944.

It is an arithmetic number, because the mean of its divisors is an integer number (8153310).

Almost surely, 2^91316904 is an apocalyptic number.

It is an amenable number.

91316904 is an abundant number, since it is smaller than the sum of its proper divisors (169589016).

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

91316904 is a wasteful number, since it uses less digits than its factorization.

91316904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543569 (or 543565 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 91316904 is about 9555.9878610220. The cubic root of 91316904 is about 450.3156698674.

The spelling of 91316904 in words is "ninety-one million, three hundred sixteen thousand, nine hundred four".