89015616 has 126 divisors (see below), whose sum is σ = 267610590. Its totient is φ = 28256256.

The previous prime is 89015581. The next prime is 89015617. The reversal of 89015616 is 61651098.

89015616 is a `hidden beast` number, since 8 + 90 + 1 + 561 + 6 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 18455616 + 70560000 = 4296^2 + 8400^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89015617) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1219356 + ... + 1219428.

Almost surely, 2^89015616 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 89015616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133805295).

89015616 is an abundant number, since it is smaller than the sum of its proper divisors (178594974).

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

89015616 is a wasteful number, since it uses less digits than its factorization.

89015616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 89015616 is about 9434.8087420997. The cubic root of 89015616 is about 446.5006209375.

The spelling of 89015616 in words is "eighty-nine million, fifteen thousand, six hundred sixteen".