38870631 has 16 divisors (see below), whose sum is σ = 57867520. Its totient is φ = 25787160.

The previous prime is 38870627. The next prime is 38870633. The reversal of 38870631 is 13607883.

38870631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38870631 - 2² = 38870627 is a prime.

It is a super-2 number, since 2×38870631² = 3021851908676322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38870633) 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 15 ways as a sum of consecutive naturals, for example, 2286 + ... + 9108.

It is an arithmetic number, because the mean of its divisors is an integer number (3616720).

Almost surely, 2^38870631 is an apocalyptic number.

38870631 is a deficient number, since it is larger than the sum of its proper divisors (18996889).

38870631 is a wasteful number, since it uses less digits than its factorization.

38870631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7043 (or 7037 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 38870631 is about 6234.6315849455. The cubic root of 38870631 is about 338.7457565860.

The spelling of 38870631 in words is "thirty-eight million, eight hundred seventy thousand, six hundred thirty-one".