91379792 has 20 divisors (see below), whose sum is σ = 202341216. Its totient is φ = 39162720.

The previous prime is 91379789. The next prime is 91379803. The reversal of 91379792 is 29797319.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its 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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407834 + ... + 408057.

Almost surely, 2^91379792 is an apocalyptic number.

It is an amenable number.

91379792 is an abundant number, since it is smaller than the sum of its proper divisors (110961424).

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

91379792 is a wasteful number, since it uses less digits than its factorization.

91379792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815906 (or 815900 counting only the distinct ones).

The product of its digits is 214326, while the sum is 47.

The square root of 91379792 is about 9559.2777969886. The cubic root of 91379792 is about 450.4190204049.

The spelling of 91379792 in words is "ninety-one million, three hundred seventy-nine thousand, seven hundred ninety-two".