38685686 has 16 divisors (see below), whose sum is σ = 62614608. Its totient is φ = 17820000.

The previous prime is 38685677. The next prime is 38685721. The reversal of 38685686 is 68658683.

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, 16061 + ... + 18311.

It is an arithmetic number, because the mean of its divisors is an integer number (3913413).

Almost surely, 2^38685686 is an apocalyptic number.

38685686 is a deficient number, since it is larger than the sum of its proper divisors (23928922).

38685686 is a wasteful number, since it uses less digits than its factorization.

38685686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2927.

The product of its digits is 1658880, while the sum is 50.

The square root of 38685686 is about 6219.7818289712. The cubic root of 38685686 is about 338.2076557381.

The spelling of 38685686 in words is "thirty-eight million, six hundred eighty-five thousand, six hundred eighty-six".