91481792 has 14 divisors (see below), whose sum is σ = 181534308. Its totient is φ = 45740864.

The previous prime is 91481773. The next prime is 91481809. The reversal of 91481792 is 29718419.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714638 + ... + 714765.

Almost surely, 2^91481792 is an apocalyptic number.

It is an amenable number.

91481792 is a deficient number, since it is larger than the sum of its proper divisors (90052516).

91481792 is a wasteful number, since it uses less digits than its factorization.

91481792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429415 (or 1429405 counting only the distinct ones).

The product of its digits is 36288, while the sum is 41.

The square root of 91481792 is about 9564.6114400952. The cubic root of 91481792 is about 450.5865470743.

The spelling of 91481792 in words is "ninety-one million, four hundred eighty-one thousand, seven hundred ninety-two".