87715066 has 16 divisors (see below), whose sum is σ = 135717120. Its totient is φ = 42494800.

The previous prime is 87715057. The next prime is 87715091. The reversal of 87715066 is 66051778.

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, 4875 + ... + 14113.

It is an arithmetic number, because the mean of its divisors is an integer number (8482320).

Almost surely, 2^87715066 is an apocalyptic number.

87715066 is a deficient number, since it is larger than the sum of its proper divisors (48002054).

87715066 is a wasteful number, since it uses less digits than its factorization.

87715066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9389.

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

The square root of 87715066 is about 9365.6321730036. The cubic root of 87715066 is about 444.3154327259.

The spelling of 87715066 in words is "eighty-seven million, seven hundred fifteen thousand, sixty-six".