91118616 has 16 divisors (see below), whose sum is σ = 227796600. Its totient is φ = 30372864.

The previous prime is 91118603. The next prime is 91118627. The reversal of 91118616 is 61681119.

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, 1898281 + ... + 1898328.

Almost surely, 2^91118616 is an apocalyptic number.

It is an amenable number.

91118616 is an abundant number, since it is smaller than the sum of its proper divisors (136677984).

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

91118616 is a wasteful number, since it uses less digits than its factorization.

91118616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3796618 (or 3796614 counting only the distinct ones).

The product of its digits is 2592, while the sum is 33.

The square root of 91118616 is about 9545.6071572216. The cubic root of 91118616 is about 449.9894911126.

The spelling of 91118616 in words is "ninety-one million, one hundred eighteen thousand, six hundred sixteen".