317439 has 10 divisors (see below), whose sum is σ = 474320. Its totient is φ = 211572.

The previous prime is 317437. The next prime is 317453. The reversal of 317439 is 934713.

It is not a de Polignac number, because 317439 - 2¹ = 317437 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 317439.

It is not an unprimeable number, because it can be changed into a prime (317431) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1879 + ... + 2040.

It is an arithmetic number, because the mean of its divisors is an integer number (47432).

2³¹⁷⁴³⁹ is an apocalyptic number.

317439 is a deficient number, since it is larger than the sum of its proper divisors (156881).

317439 is an equidigital number, since it uses as much as digits as its factorization.

317439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3931 (or 3922 counting only the distinct ones).

The product of its digits is 2268, while the sum is 27.

The square root of 317439 is about 563.4172521320. The cubic root of 317439 is about 68.2160802346.

The spelling of 317439 in words is "three hundred seventeen thousand, four hundred thirty-nine".