89664432 has 80 divisors (see below), whose sum is σ = 272149248. Its totient is φ = 25079040.

The previous prime is 89664397. The next prime is 89664437. The reversal of 89664432 is 23446698.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (89664437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 333 + ... + 13395.

Almost surely, 2^89664432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89664432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136074624).

89664432 is an abundant number, since it is smaller than the sum of its proper divisors (182484816).

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

89664432 is a wasteful number, since it uses less digits than its factorization.

89664432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13098 (or 13092 counting only the distinct ones).

The product of its digits is 248832, while the sum is 42.

The square root of 89664432 is about 9469.1304775043. The cubic root of 89664432 is about 447.5828120933.

The spelling of 89664432 in words is "eighty-nine million, six hundred sixty-four thousand, four hundred thirty-two".