89012520 has 160 divisors (see below), whose sum is σ = 303700320. Its totient is φ = 23379840.

The previous prime is 89012509. The next prime is 89012557. The reversal of 89012520 is 2521098.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 268755 + ... + 269085.

It is an arithmetic number, because the mean of its divisors is an integer number (1898127).

Almost surely, 2^89012520 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 89012520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151850160).

89012520 is an abundant number, since it is smaller than the sum of its proper divisors (214687800).

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

89012520 is a wasteful number, since it uses less digits than its factorization.

89012520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 89012520 is about 9434.6446673947. The cubic root of 89012520 is about 446.4954443853.

The spelling of 89012520 in words is "eighty-nine million, twelve thousand, five hundred twenty".