38761939 has 2 divisors, whose sum is σ = 38761940. Its totient is φ = 38761938.

The previous prime is 38761909. The next prime is 38761949. The reversal of 38761939 is 93916783.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38761939 - 2⁵ = 38761907 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38761909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19380969 + 19380970.

It is an arithmetic number, because the mean of its divisors is an integer number (19380970).

Almost surely, 2^38761939 is an apocalyptic number.

38761939 is a deficient number, since it is larger than the sum of its proper divisors (1).

38761939 is an equidigital number, since it uses as much as digits as its factorization.

38761939 is an evil number, because the sum of its binary digits is even.

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

The square root of 38761939 is about 6225.9086886976. The cubic root of 38761939 is about 338.4297225643.

It can be divided in two parts, 387 and 61939, that added together give a palindrome (62326).

The spelling of 38761939 in words is "thirty-eight million, seven hundred sixty-one thousand, nine hundred thirty-nine".