87656504 has 64 divisors (see below), whose sum is σ = 183859200. Its totient is φ = 38922624.

The previous prime is 87656497. The next prime is 87656509. The reversal of 87656504 is 40565678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87656509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 386039 + ... + 386265.

It is an arithmetic number, because the mean of its divisors is an integer number (2872800).

Almost surely, 2^87656504 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 87656504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91929600).

87656504 is an abundant number, since it is smaller than the sum of its proper divisors (96202696).

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

87656504 is a wasteful number, since it uses less digits than its factorization.

87656504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372 (or 368 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 87656504 is about 9362.5052202923. The cubic root of 87656504 is about 444.2165299400.

The spelling of 87656504 in words is "eighty-seven million, six hundred fifty-six thousand, five hundred four".