87864886 has 16 divisors (see below), whose sum is σ = 135354240. Its totient is φ = 42752320.

The previous prime is 87864859. The next prime is 87864901. The reversal of 87864886 is 68846878.

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, 38160 + ... + 40396.

It is an arithmetic number, because the mean of its divisors is an integer number (8459640).

Almost surely, 2^87864886 is an apocalyptic number.

87864886 is a deficient number, since it is larger than the sum of its proper divisors (47489354).

87864886 is a wasteful number, since it uses less digits than its factorization.

87864886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2759.

The product of its digits is 4128768, while the sum is 55.

The square root of 87864886 is about 9373.6271528155. The cubic root of 87864886 is about 444.5682569266.

The spelling of 87864886 in words is "eighty-seven million, eight hundred sixty-four thousand, eight hundred eighty-six".