89161984 has 72 divisors (see below), whose sum is σ = 195733440. Its totient is φ = 40347648.

The previous prime is 89161973. The next prime is 89161993. The reversal of 89161984 is 48916198.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111474 + ... + 112270.

It is an arithmetic number, because the mean of its divisors is an integer number (2718520).

Almost surely, 2^89161984 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 89161984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97866720).

89161984 is an abundant number, since it is smaller than the sum of its proper divisors (106571456).

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

89161984 is a wasteful number, since it uses less digits than its factorization.

89161984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855 (or 841 counting only the distinct ones).

The product of its digits is 124416, while the sum is 46.

The square root of 89161984 is about 9442.5623641044. The cubic root of 89161984 is about 446.7452132851.

The spelling of 89161984 in words is "eighty-nine million, one hundred sixty-one thousand, nine hundred eighty-four".