91715360 has 144 divisors (see below), whose sum is σ = 250096896. Its totient is φ = 31488000.

The previous prime is 91715359. The next prime is 91715381. The reversal of 91715360 is 6351719.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2236940 + ... + 2236980.

It is an arithmetic number, because the mean of its divisors is an integer number (1736784).

Almost surely, 2^91715360 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91715360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125048448).

91715360 is an abundant number, since it is smaller than the sum of its proper divisors (158381536).

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

91715360 is a wasteful number, since it uses less digits than its factorization.

91715360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 91715360 is about 9576.8136663506. The cubic root of 91715360 is about 450.9696949334.

The spelling of 91715360 in words is "ninety-one million, seven hundred fifteen thousand, three hundred sixty".