91616828 has 12 divisors (see below), whose sum is σ = 160816152. Its totient is φ = 45669360.

The previous prime is 91616809. The next prime is 91616849. The reversal of 91616828 is 82861619.

It is a hoax number, since the sum of its digits (41) 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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33275 + ... + 35922.

It is an arithmetic number, because the mean of its divisors is an integer number (13401346).

Almost surely, 2^91616828 is an apocalyptic number.

It is an amenable number.

91616828 is a deficient number, since it is larger than the sum of its proper divisors (69199324).

91616828 is a wasteful number, since it uses less digits than its factorization.

91616828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69532 (or 69530 counting only the distinct ones).

The product of its digits is 41472, while the sum is 41.

The square root of 91616828 is about 9571.6679842126. The cubic root of 91616828 is about 450.8081412307.

The spelling of 91616828 in words is "ninety-one million, six hundred sixteen thousand, eight hundred twenty-eight".