87044736 has 64 divisors (see below), whose sum is σ = 232192800. Its totient is φ = 28892160.

The previous prime is 87044707. The next prime is 87044753. The reversal of 87044736 is 63744078.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 87044694 and 87044703.

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, 160626 + ... + 161166.

Almost surely, 2^87044736 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 87044736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116096400).

87044736 is an abundant number, since it is smaller than the sum of its proper divisors (145148064).

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

87044736 is a wasteful number, since it uses less digits than its factorization.

87044736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977 (or 965 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 87044736 is about 9329.7768462059. The cubic root of 87044736 is about 443.1806983301.

The spelling of 87044736 in words is "eighty-seven million, forty-four thousand, seven hundred thirty-six".