89724920 has 16 divisors (see below), whose sum is σ = 201881160. Its totient is φ = 35889952.

The previous prime is 89724907. The next prime is 89724941. The reversal of 89724920 is 2942798.

It is a super-2 number, since 2×89724920² = 16101122538012800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1121522 + ... + 1121601.

Almost surely, 2^89724920 is an apocalyptic number.

It is an amenable number.

89724920 is an abundant number, since it is smaller than the sum of its proper divisors (112156240).

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

89724920 is a wasteful number, since it uses less digits than its factorization.

89724920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2243134 (or 2243130 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 89724920 is about 9472.3238964892. The cubic root of 89724920 is about 447.6834365471.

The spelling of 89724920 in words is "eighty-nine million, seven hundred twenty-four thousand, nine hundred twenty".