87668904 has 16 divisors (see below), whose sum is σ = 219172320. Its totient is φ = 29222960.

The previous prime is 87668887. The next prime is 87668923. The reversal of 87668904 is 40986678.

It is a super-2 number, since 2×87668904² = 15371673457122432, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1826412 + ... + 1826459.

It is an arithmetic number, because the mean of its divisors is an integer number (13698270).

Almost surely, 2^87668904 is an apocalyptic number.

It is an amenable number.

87668904 is an abundant number, since it is smaller than the sum of its proper divisors (131503416).

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

87668904 is a wasteful number, since it uses less digits than its factorization.

87668904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3652880 (or 3652876 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 87668904 is about 9363.1674127936. The cubic root of 87668904 is about 444.2374754299.

The spelling of 87668904 in words is "eighty-seven million, six hundred sixty-eight thousand, nine hundred four".