89491923 has 12 divisors (see below), whose sum is σ = 129415728. Its totient is φ = 59592240.

The previous prime is 89491891. The next prime is 89491939. The reversal of 89491923 is 32919498.

It is not a de Polignac number, because 89491923 - 2⁵ = 89491891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89490923) 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, 3186 + ... + 13752.

It is an arithmetic number, because the mean of its divisors is an integer number (10784644).

Almost surely, 2^89491923 is an apocalyptic number.

89491923 is a deficient number, since it is larger than the sum of its proper divisors (39923805).

89491923 is a wasteful number, since it uses less digits than its factorization.

89491923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11514 (or 11511 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 89491923 is about 9460.0170718662. The cubic root of 89491923 is about 447.2955869669.

The spelling of 89491923 in words is "eighty-nine million, four hundred ninety-one thousand, nine hundred twenty-three".