91616512 has 36 divisors (see below), whose sum is σ = 196949620. Its totient is φ = 42283008.

The previous prime is 91616491. The next prime is 91616549. The reversal of 91616512 is 21561619.

It can be written as a sum of positive squares in 2 ways, for example, as 22127616 + 69488896 = 4704^2 + 8336^2 .

It is a super-2 number, since 2×91616512² = 16787170542092288, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10437 + ... + 17092.

Almost surely, 2^91616512 is an apocalyptic number.

It is an amenable number.

91616512 is an abundant number, since it is smaller than the sum of its proper divisors (105333108).

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

91616512 is a wasteful number, since it uses less digits than its factorization.

91616512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27558 (or 27544 counting only the distinct ones).

The product of its digits is 3240, while the sum is 31.

The square root of 91616512 is about 9571.6514771485. The cubic root of 91616512 is about 450.8076229288.

The spelling of 91616512 in words is "ninety-one million, six hundred sixteen thousand, five hundred twelve".