316979309 has 16 divisors (see below), whose sum is σ = 341936640. Its totient is φ = 293160000.

The previous prime is 316979293. The next prime is 316979321. The reversal of 316979309 is 903979613.

It is a cyclic number.

It is not a de Polignac number, because 316979309 - 2⁴ = 316979293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316979009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89054 + ... + 92544.

It is an arithmetic number, because the mean of its divisors is an integer number (21371040).

Almost surely, 2^316979309 is an apocalyptic number.

It is an amenable number.

316979309 is a deficient number, since it is larger than the sum of its proper divisors (24957331).

316979309 is a wasteful number, since it uses less digits than its factorization.

316979309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3652.

The product of its (nonzero) digits is 275562, while the sum is 47.

The square root of 316979309 is about 17803.9127441133. The cubic root of 316979309 is about 681.8313588182.

The spelling of 316979309 in words is "three hundred sixteen million, nine hundred seventy-nine thousand, three hundred nine".