87668799 has 16 divisors (see below), whose sum is σ = 120325632. Its totient is φ = 56736288.

The previous prime is 87668797. The next prime is 87668807. The reversal of 87668799 is 99786678.

It is not a de Polignac number, because 87668799 - 2¹ = 87668797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87668797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81942 + ... + 83004.

It is an arithmetic number, because the mean of its divisors is an integer number (7520352).

Almost surely, 2^87668799 is an apocalyptic number.

87668799 is a deficient number, since it is larger than the sum of its proper divisors (32656833).

87668799 is a wasteful number, since it uses less digits than its factorization.

87668799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1846.

The product of its digits is 9144576, while the sum is 60.

The square root of 87668799 is about 9363.1618057150. The cubic root of 87668799 is about 444.2372980772.

The spelling of 87668799 in words is "eighty-seven million, six hundred sixty-eight thousand, seven hundred ninety-nine".