38982979 has 16 divisors (see below), whose sum is σ = 46008000. Its totient is φ = 33012672.

The previous prime is 38982973. The next prime is 38983001. The reversal of 38982979 is 97928983.

It is not a de Polignac number, because 38982979 - 2¹³ = 38974787 is a prime.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38982973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29889 + ... + 31165.

It is an arithmetic number, because the mean of its divisors is an integer number (2875500).

Almost surely, 2^38982979 is an apocalyptic number.

38982979 is a deficient number, since it is larger than the sum of its proper divisors (7025021).

38982979 is an equidigital number, since it uses as much as digits as its factorization.

38982979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387 (or 1373 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 55.

The square root of 38982979 is about 6243.6350790225. The cubic root of 38982979 is about 339.0718022422.

The spelling of 38982979 in words is "thirty-eight million, nine hundred eighty-two thousand, nine hundred seventy-nine".