313959979 has 2 divisors, whose sum is σ = 313959980. Its totient is φ = 313959978.

The previous prime is 313959973. The next prime is 313960019. The reversal of 313959979 is 979959313.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313959979 is a prime.

It is a super-3 number, since 3×313959979³ (a number of 26 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (313959973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156979989 + 156979990.

It is an arithmetic number, because the mean of its divisors is an integer number (156979990).

Almost surely, 2^313959979 is an apocalyptic number.

313959979 is a deficient number, since it is larger than the sum of its proper divisors (1).

313959979 is an equidigital number, since it uses as much as digits as its factorization.

313959979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2066715, while the sum is 55.

The square root of 313959979 is about 17718.9158528393. The cubic root of 313959979 is about 679.6595607019.

The spelling of 313959979 in words is "three hundred thirteen million, nine hundred fifty-nine thousand, nine hundred seventy-nine".