318679 has 2 divisors, whose sum is σ = 318680. Its totient is φ = 318678.

The previous prime is 318677. The next prime is 318683. The reversal of 318679 is 976813.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 318679 - 2¹ = 318677 is a prime.

Together with 318677, it forms a pair of twin primes.

318679 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159339 + 159340.

It is an arithmetic number, because the mean of its divisors is an integer number (159340).

2³¹⁸⁶⁷⁹ is an apocalyptic number.

318679 is a deficient number, since it is larger than the sum of its proper divisors (1).

318679 is an equidigital number, since it uses as much as digits as its factorization.

318679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 34.

The square root of 318679 is about 564.5166073731. The cubic root of 318679 is about 68.3047881302.

The spelling of 318679 in words is "three hundred eighteen thousand, six hundred seventy-nine".