91365792 has 72 divisors (see below), whose sum is σ = 279006336. Its totient is φ = 26103168.

The previous prime is 91365787. The next prime is 91365793. The reversal of 91365792 is 29756319.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (91365793) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5008 + ... + 14415.

It is an arithmetic number, because the mean of its divisors is an integer number (3875088).

Almost surely, 2^91365792 is an apocalyptic number.

It is an amenable number.

91365792 is an abundant number, since it is smaller than the sum of its proper divisors (187640544).

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

91365792 is a wasteful number, since it uses less digits than its factorization.

91365792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19450 (or 19435 counting only the distinct ones).

The product of its digits is 102060, while the sum is 42.

The square root of 91365792 is about 9558.5454960470. The cubic root of 91365792 is about 450.3960168203.

The spelling of 91365792 in words is "ninety-one million, three hundred sixty-five thousand, seven hundred ninety-two".