87615966 has 16 divisors (see below), whose sum is σ = 175968000. Its totient is φ = 29082648.

The previous prime is 87615959. The next prime is 87615991. The reversal of 87615966 is 66951678.

It is a super-2 number, since 2×87615966² = 15353114996226312, which contains 22 as substring.

It is a congruent number.

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, 29116 + ... + 31983.

It is an arithmetic number, because the mean of its divisors is an integer number (10998000).

Almost surely, 2^87615966 is an apocalyptic number.

87615966 is an abundant number, since it is smaller than the sum of its proper divisors (88352034).

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

87615966 is a wasteful number, since it uses less digits than its factorization.

87615966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61343.

The product of its digits is 544320, while the sum is 48.

The square root of 87615966 is about 9360.3400579252. The cubic root of 87615966 is about 444.1480412919.

The spelling of 87615966 in words is "eighty-seven million, six hundred fifteen thousand, nine hundred sixty-six".