38860931 has 2 divisors, whose sum is σ = 38860932. Its totient is φ = 38860930.

The previous prime is 38860901. The next prime is 38860933. The reversal of 38860931 is 13906883.

It is a strong prime.

It is an emirp because it is prime and its reverse (13906883) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38860931 - 2⁶ = 38860867 is a prime.

It is a super-2 number, since 2×38860931² = 3020343916373522, which contains 22 as substring.

Together with 38860933, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38860933) 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, 19430465 + 19430466.

It is an arithmetic number, because the mean of its divisors is an integer number (19430466).

Almost surely, 2^38860931 is an apocalyptic number.

38860931 is a deficient number, since it is larger than the sum of its proper divisors (1).

38860931 is an equidigital number, since it uses as much as digits as its factorization.

38860931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 38860931 is about 6233.8536235622. The cubic root of 38860931 is about 338.7175767227.

The spelling of 38860931 in words is "thirty-eight million, eight hundred sixty thousand, nine hundred thirty-one".