89512864 has 48 divisors (see below), whose sum is σ = 204736896. Its totient is φ = 37728000.

The previous prime is 89512811. The next prime is 89512873. The reversal of 89512864 is 46821598.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 89512864.

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, 10389 + ... + 16939.

It is an arithmetic number, because the mean of its divisors is an integer number (4265352).

Almost surely, 2^89512864 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 89512864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102368448).

89512864 is an abundant number, since it is smaller than the sum of its proper divisors (115224032).

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

89512864 is a wasteful number, since it uses less digits than its factorization.

89512864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6629 (or 6621 counting only the distinct ones).

The product of its digits is 138240, while the sum is 43.

The square root of 89512864 is about 9461.1238233098. The cubic root of 89512864 is about 447.3304731184.

The spelling of 89512864 in words is "eighty-nine million, five hundred twelve thousand, eight hundred sixty-four".