87297056 has 96 divisors (see below), whose sum is σ = 217728000. Its totient is φ = 33465600.

The previous prime is 87297037. The next prime is 87297073. The reversal of 87297056 is 65079278.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 87296998 and 87297016.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174695 + ... + 175193.

It is an arithmetic number, because the mean of its divisors is an integer number (2268000).

Almost surely, 2^87297056 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 87297056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108864000).

87297056 is an abundant number, since it is smaller than the sum of its proper divisors (130430944).

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

87297056 is a wasteful number, since it uses less digits than its factorization.

87297056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598 (or 590 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 87297056 is about 9343.2893565382. The cubic root of 87297056 is about 443.6085070014.

The spelling of 87297056 in words is "eighty-seven million, two hundred ninety-seven thousand, fifty-six".