38684907 has 12 divisors (see below), whose sum is σ = 57178264. Its totient is φ = 25189920.

The previous prime is 38684897. The next prime is 38684923. The reversal of 38684907 is 70948683.

It is a happy number.

38684907 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-38684907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38684977) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 49594 + ... + 50367.

Almost surely, 2^38684907 is an apocalyptic number.

38684907 is a deficient number, since it is larger than the sum of its proper divisors (18493357).

38684907 is a wasteful number, since it uses less digits than its factorization.

38684907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100010 (or 100007 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 38684907 is about 6219.7192058806. The cubic root of 38684907 is about 338.2053856002.

The spelling of 38684907 in words is "thirty-eight million, six hundred eighty-four thousand, nine hundred seven".