317929 has 6 divisors (see below), whose sum is σ = 332906. Its totient is φ = 303600.

The previous prime is 317923. The next prime is 317957. The reversal of 317929 is 929713.

It can be written as a sum of positive squares in only one way, i.e., 304704 + 13225 = 552^2 + 115^2 .

It is not a de Polignac number, because 317929 - 2³ = 317921 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 317929.

It is not an unprimeable number, because it can be changed into a prime (317921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 229 + ... + 829.

2³¹⁷⁹²⁹ is an apocalyptic number.

It is an amenable number.

317929 is a deficient number, since it is larger than the sum of its proper divisors (14977).

317929 is an equidigital number, since it uses as much as digits as its factorization.

317929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647 (or 624 counting only the distinct ones).

The product of its digits is 3402, while the sum is 31.

The square root of 317929 is about 563.8519309180. The cubic root of 317929 is about 68.2511617204.

The spelling of 317929 in words is "three hundred seventeen thousand, nine hundred twenty-nine".