86688668 has 48 divisors (see below), whose sum is σ = 169845984. Its totient is φ = 38384640.

The previous prime is 86688653. The next prime is 86688671.

86688668 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×86688668² = 15029850319228448, which contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 439946 + ... + 440142.

It is an arithmetic number, because the mean of its divisors is an integer number (3538458).

Almost surely, 2^86688668 is an apocalyptic number.

It is an amenable number.

86688668 is a deficient number, since it is larger than the sum of its proper divisors (83157316).

86688668 is a wasteful number, since it uses less digits than its factorization.

86688668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422 (or 420 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 56.

The square root of 86688668 is about 9310.6749486812. The cubic root of 86688668 is about 442.5755760558.

The spelling of 86688668 in words is "eighty-six million, six hundred eighty-eight thousand, six hundred sixty-eight".