89997924 has 24 divisors (see below), whose sum is σ = 210467488. Its totient is φ = 29931840.

The previous prime is 89997923. The next prime is 89997989. The reversal of 89997924 is 42979998.

It is not an unprimeable number, because it can be changed into a prime (89997923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2722 + ... + 13689.

Almost surely, 2^89997924 is an apocalyptic number.

It is an amenable number.

89997924 is an abundant number, since it is smaller than the sum of its proper divisors (120469564).

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

89997924 is a wasteful number, since it uses less digits than its factorization.

89997924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16875 (or 16873 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 57.

The square root of 89997924 is about 9486.7235650671. The cubic root of 89997924 is about 448.1370289269.

The spelling of 89997924 in words is "eighty-nine million, nine hundred ninety-seven thousand, nine hundred twenty-four".