313698239 has 2 divisors, whose sum is σ = 313698240. Its totient is φ = 313698238.

The previous prime is 313698199. The next prime is 313698241. The reversal of 313698239 is 932896313.

It is a strong prime.

It is an emirp because it is prime and its reverse (932896313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 313698239 - 2²⁸ = 45262783 is a prime.

It is a super-2 number, since 2×313698239² = 196813170303402242, which contains 22 as substring.

Together with 313698241, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 313698239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313698289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156849119 + 156849120.

It is an arithmetic number, because the mean of its divisors is an integer number (156849120).

Almost surely, 2^313698239 is an apocalyptic number.

313698239 is a deficient number, since it is larger than the sum of its proper divisors (1).

313698239 is an equidigital number, since it uses as much as digits as its factorization.

313698239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 44.

The square root of 313698239 is about 17711.5284207772. The cubic root of 313698239 is about 679.4706368863.

The spelling of 313698239 in words is "three hundred thirteen million, six hundred ninety-eight thousand, two hundred thirty-nine".