38967631 has 2 divisors, whose sum is σ = 38967632. Its totient is φ = 38967630.

The previous prime is 38967611. The next prime is 38967641. The reversal of 38967631 is 13676983.

38967631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38967631 - 2¹¹ = 38965583 is a prime.

It is a super-2 number, since 2×38967631² = 3036952531504322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38967601) 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 as a sum of consecutive naturals, namely, 19483815 + 19483816.

It is an arithmetic number, because the mean of its divisors is an integer number (19483816).

Almost surely, 2^38967631 is an apocalyptic number.

38967631 is a deficient number, since it is larger than the sum of its proper divisors (1).

38967631 is an equidigital number, since it uses as much as digits as its factorization.

38967631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 43.

The square root of 38967631 is about 6242.4058663307. The cubic root of 38967631 is about 339.0272977151.

The spelling of 38967631 in words is "thirty-eight million, nine hundred sixty-seven thousand, six hundred thirty-one".