91612416 has 72 divisors (see below), whose sum is σ = 278670784. Its totient is φ = 26173440.

The previous prime is 91612387. The next prime is 91612459. The reversal of 91612416 is 61421619.

It is a happy number.

It is a congruent number.

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, 3145 + ... + 13896.

Almost surely, 2^91612416 is an apocalyptic number.

91612416 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

91612416 is an abundant number, since it is smaller than the sum of its proper divisors (187058368).

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

91612416 is a wasteful number, since it uses less digits than its factorization.

91612416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17067 (or 17053 counting only the distinct ones).

The product of its digits is 2592, while the sum is 30.

The square root of 91612416 is about 9571.4375095907. The cubic root of 91612416 is about 450.8009045782.

The spelling of 91612416 in words is "ninety-one million, six hundred twelve thousand, four hundred sixteen".