318813679 has 2 divisors, whose sum is σ = 318813680. Its totient is φ = 318813678.

The previous prime is 318813647. The next prime is 318813697. The reversal of 318813679 is 976318813.

Together with next prime (318813697) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 318813679 - 2⁵ = 318813647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318814679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159406839 + 159406840.

It is an arithmetic number, because the mean of its divisors is an integer number (159406840).

Almost surely, 2^318813679 is an apocalyptic number.

318813679 is a deficient number, since it is larger than the sum of its proper divisors (1).

318813679 is an equidigital number, since it uses as much as digits as its factorization.

318813679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 46.

The square root of 318813679 is about 17855.3543510063. The cubic root of 318813679 is about 683.1440901827.

The spelling of 318813679 in words is "three hundred eighteen million, eight hundred thirteen thousand, six hundred seventy-nine".