87715660 has 12 divisors (see below), whose sum is σ = 184202928. Its totient is φ = 35086256.

The previous prime is 87715643. The next prime is 87715697. The reversal of 87715660 is 6651778.

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, 2192872 + ... + 2192911.

It is an arithmetic number, because the mean of its divisors is an integer number (15350244).

Almost surely, 2^87715660 is an apocalyptic number.

It is an amenable number.

87715660 is an abundant number, since it is smaller than the sum of its proper divisors (96487268).

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

87715660 is a wasteful number, since it uses less digits than its factorization.

87715660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4385792 (or 4385790 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 87715660 is about 9365.6638846373. The cubic root of 87715660 is about 444.3164356808.

The spelling of 87715660 in words is "eighty-seven million, seven hundred fifteen thousand, six hundred sixty".