89724732 has 24 divisors (see below), whose sum is σ = 210121296. Its totient is φ = 29799168.

The previous prime is 89724697. The next prime is 89724737. The reversal of 89724732 is 23742798.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89724737) 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, 10173 + ... + 16820.

It is an arithmetic number, because the mean of its divisors is an integer number (8755054).

Almost surely, 2^89724732 is an apocalyptic number.

It is an amenable number.

89724732 is an abundant number, since it is smaller than the sum of its proper divisors (120396564).

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

89724732 is a wasteful number, since it uses less digits than its factorization.

89724732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27277 (or 27275 counting only the distinct ones).

The product of its digits is 169344, while the sum is 42.

The square root of 89724732 is about 9472.3139728368. The cubic root of 89724732 is about 447.6831238709.

The spelling of 89724732 in words is "eighty-nine million, seven hundred twenty-four thousand, seven hundred thirty-two".