89724864 has 28 divisors (see below), whose sum is σ = 237397544. Its totient is φ = 29908224.

The previous prime is 89724829. The next prime is 89724871. The reversal of 89724864 is 46842798.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 233467 + ... + 233850.

Almost surely, 2^89724864 is an apocalyptic number.

It is an amenable number.

89724864 is an abundant number, since it is smaller than the sum of its proper divisors (147672680).

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

89724864 is a wasteful number, since it uses less digits than its factorization.

89724864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467332 (or 467322 counting only the distinct ones).

The product of its digits is 774144, while the sum is 48.

The square root of 89724864 is about 9472.3209405087. The cubic root of 89724864 is about 447.6833434095.

The spelling of 89724864 in words is "eighty-nine million, seven hundred twenty-four thousand, eight hundred sixty-four".