87666562 has 16 divisors (see below), whose sum is σ = 134835840. Its totient is φ = 42728848.

The previous prime is 87666521. The next prime is 87666587. The reversal of 87666562 is 26566678.

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, 23553 + ... + 27019.

It is an arithmetic number, because the mean of its divisors is an integer number (8427240).

Almost surely, 2^87666562 is an apocalyptic number.

87666562 is a deficient number, since it is larger than the sum of its proper divisors (47169278).

87666562 is a wasteful number, since it uses less digits than its factorization.

87666562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3785.

The product of its digits is 725760, while the sum is 46.

The square root of 87666562 is about 9363.0423474424. The cubic root of 87666562 is about 444.2335195862.

The spelling of 87666562 in words is "eighty-seven million, six hundred sixty-six thousand, five hundred sixty-two".