38686936 has 8 divisors (see below), whose sum is σ = 72538020. Its totient is φ = 19343464.

The previous prime is 38686933. The next prime is 38686961. The reversal of 38686936 is 63968683.

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 38686936.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38686931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2417926 + ... + 2417941.

Almost surely, 2^38686936 is an apocalyptic number.

It is an amenable number.

38686936 is a deficient number, since it is larger than the sum of its proper divisors (33851084).

38686936 is a wasteful number, since it uses less digits than its factorization.

38686936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4835873 (or 4835869 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 49.

The square root of 38686936 is about 6219.8823139992. The cubic root of 38686936 is about 338.2112983862.

The spelling of 38686936 in words is "thirty-eight million, six hundred eighty-six thousand, nine hundred thirty-six".