38686712 has 8 divisors (see below), whose sum is σ = 72537600. Its totient is φ = 19343352.

The previous prime is 38686699. The next prime is 38686723. The reversal of 38686712 is 21768683.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 38686712.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2417912 + ... + 2417927.

It is an arithmetic number, because the mean of its divisors is an integer number (9067200).

Almost surely, 2^38686712 is an apocalyptic number.

It is an amenable number.

38686712 is a deficient number, since it is larger than the sum of its proper divisors (33850888).

38686712 is a wasteful number, since it uses less digits than its factorization.

38686712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4835845 (or 4835841 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 38686712 is about 6219.8643072016. The cubic root of 38686712 is about 338.2106456294.

The spelling of 38686712 in words is "thirty-eight million, six hundred eighty-six thousand, seven hundred twelve".