38931697 has 8 divisors (see below), whose sum is σ = 44585856. Its totient is φ = 33300672.

The previous prime is 38931677. The next prime is 38931713. The reversal of 38931697 is 79613983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38931697 - 2⁷ = 38931569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38931637) 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 in 7 ways as a sum of consecutive naturals, for example, 2008 + ... + 9049.

It is an arithmetic number, because the mean of its divisors is an integer number (5573232).

Almost surely, 2^38931697 is an apocalyptic number.

It is an amenable number.

38931697 is a deficient number, since it is larger than the sum of its proper divisors (5654159).

38931697 is a wasteful number, since it uses less digits than its factorization.

38931697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11567.

The product of its digits is 244944, while the sum is 46.

The square root of 38931697 is about 6239.5269852770. The cubic root of 38931697 is about 338.9230543277.

The spelling of 38931697 in words is "thirty-eight million, nine hundred thirty-one thousand, six hundred ninety-seven".