89391984 has 160 divisors (see below), whose sum is σ = 278982144. Its totient is φ = 24330240.

The previous prime is 89391959. The next prime is 89391997. The reversal of 89391984 is 48919398.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 206232 + ... + 206664.

Almost surely, 2^89391984 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 89391984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139491072).

89391984 is an abundant number, since it is smaller than the sum of its proper divisors (189590160).

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

89391984 is a wasteful number, since it uses less digits than its factorization.

89391984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495 (or 489 counting only the distinct ones).

The product of its digits is 559872, while the sum is 51.

The square root of 89391984 is about 9454.7334177120. The cubic root of 89391984 is about 447.1290210067.

The spelling of 89391984 in words is "eighty-nine million, three hundred ninety-one thousand, nine hundred eighty-four".