38886979 has 2 divisors, whose sum is σ = 38886980. Its totient is φ = 38886978.

The previous prime is 38886961. The next prime is 38887021. The reversal of 38886979 is 97968883.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38886979 - 2⁷ = 38886851 is a prime.

It is not a weakly prime, because it can be changed into another prime (38886479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19443489 + 19443490.

It is an arithmetic number, because the mean of its divisors is an integer number (19443490).

Almost surely, 2^38886979 is an apocalyptic number.

38886979 is a deficient number, since it is larger than the sum of its proper divisors (1).

38886979 is an equidigital number, since it uses as much as digits as its factorization.

38886979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5225472, while the sum is 58.

The square root of 38886979 is about 6235.9425109602. The cubic root of 38886979 is about 338.7932392167.

The spelling of 38886979 in words is "thirty-eight million, eight hundred eighty-six thousand, nine hundred seventy-nine".