313979 has 2 divisors, whose sum is σ = 313980. Its totient is φ = 313978.

The previous prime is 313969. The next prime is 313981. The reversal of 313979 is 979313.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (979313) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313979 is a prime.

Together with 313981, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 313979.

It is not a weakly prime, because it can be changed into another prime (313909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156989 + 156990.

It is an arithmetic number, because the mean of its divisors is an integer number (156990).

2³¹³⁹⁷⁹ is an apocalyptic number.

313979 is a deficient number, since it is larger than the sum of its proper divisors (1).

313979 is an equidigital number, since it uses as much as digits as its factorization.

313979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5103, while the sum is 32.

The square root of 313979 is about 560.3382906781. The cubic root of 313979 is about 67.9673285958.

The spelling of 313979 in words is "three hundred thirteen thousand, nine hundred seventy-nine".