91926816 has 72 divisors (see below), whose sum is σ = 246007440. Its totient is φ = 30055296.

The previous prime is 91926787. The next prime is 91926841. The reversal of 91926816 is 61862919.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 661275 + ... + 661413.

It is an arithmetic number, because the mean of its divisors is an integer number (3416770).

Almost surely, 2^91926816 is an apocalyptic number.

91926816 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91926816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123003720).

91926816 is an abundant number, since it is smaller than the sum of its proper divisors (154080624).

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

91926816 is a wasteful number, since it uses less digits than its factorization.

91926816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 227 counting only the distinct ones).

The product of its digits is 46656, while the sum is 42.

The square root of 91926816 is about 9587.8473079206. The cubic root of 91926816 is about 451.3160093531.

The spelling of 91926816 in words is "ninety-one million, nine hundred twenty-six thousand, eight hundred sixteen".