318768979 has 2 divisors, whose sum is σ = 318768980. Its totient is φ = 318768978.

The previous prime is 318768851. The next prime is 318769021. The reversal of 318768979 is 979867813.

It is a strong prime.

It is an emirp because it is prime and its reverse (979867813) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 318768979 - 2⁷ = 318768851 is a prime.

It is a super-2 number, since 2×318768979² = 203227323945404882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (318748979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159384489 + 159384490.

It is an arithmetic number, because the mean of its divisors is an integer number (159384490).

Almost surely, 2^318768979 is an apocalyptic number.

318768979 is a deficient number, since it is larger than the sum of its proper divisors (1).

318768979 is an equidigital number, since it uses as much as digits as its factorization.

318768979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4572288, while the sum is 58.

The square root of 318768979 is about 17854.1025817597. The cubic root of 318768979 is about 683.1121614313.

The spelling of 318768979 in words is "three hundred eighteen million, seven hundred sixty-eight thousand, nine hundred seventy-nine".