319079317 has 2 divisors, whose sum is σ = 319079318. Its totient is φ = 319079316.

The previous prime is 319079291. The next prime is 319079323. The reversal of 319079317 is 713970913.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 234273636 + 84805681 = 15306^2 + 9209^2 .

It is a cyclic number.

It is not a de Polignac number, because 319079317 - 2¹⁵ = 319046549 is a prime.

It is a super-2 number, since 2×319079317² = 203623221074372978, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 319079317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (319079377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159539658 + 159539659.

It is an arithmetic number, because the mean of its divisors is an integer number (159539659).

Almost surely, 2^319079317 is an apocalyptic number.

It is an amenable number.

319079317 is a deficient number, since it is larger than the sum of its proper divisors (1).

319079317 is an equidigital number, since it uses as much as digits as its factorization.

319079317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35721, while the sum is 40.

The square root of 319079317 is about 17862.7914111989. The cubic root of 319079317 is about 683.3337711412. Note that the first 3 decimals are identical.

The spelling of 319079317 in words is "three hundred nineteen million, seventy-nine thousand, three hundred seventeen".