313089979 has 2 divisors, whose sum is σ = 313089980. Its totient is φ = 313089978.

The previous prime is 313089949. The next prime is 313089989. The reversal of 313089979 is 979980313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 313089979 - 2¹⁵ = 313057211 is a prime.

It is not a weakly prime, because it can be changed into another prime (313089929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156544989 + 156544990.

It is an arithmetic number, because the mean of its divisors is an integer number (156544990).

Almost surely, 2^313089979 is an apocalyptic number.

313089979 is a deficient number, since it is larger than the sum of its proper divisors (1).

313089979 is an equidigital number, since it uses as much as digits as its factorization.

313089979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416, while the sum is 49.

The square root of 313089979 is about 17694.3487871128. The cubic root of 313089979 is about 679.0311888520.

The spelling of 313089979 in words is "three hundred thirteen million, eighty-nine thousand, nine hundred seventy-nine".