87715456 has 32 divisors (see below), whose sum is σ = 179478180. Its totient is φ = 42670080.

The previous prime is 87715421. The next prime is 87715469. The reversal of 87715456 is 65451778.

It can be written as a sum of positive squares in 2 ways, for example, as 61089856 + 26625600 = 7816^2 + 5160^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4525 + ... + 13996.

Almost surely, 2^87715456 is an apocalyptic number.

It is an amenable number.

87715456 is an abundant number, since it is smaller than the sum of its proper divisors (91762724).

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

87715456 is a wasteful number, since it uses less digits than its factorization.

87715456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18572 (or 18560 counting only the distinct ones).

The product of its digits is 235200, while the sum is 43.

The square root of 87715456 is about 9365.6529937853. The cubic root of 87715456 is about 444.3160912321.

The spelling of 87715456 in words is "eighty-seven million, seven hundred fifteen thousand, four hundred fifty-six".