317879 has 4 divisors (see below), whose sum is σ = 319440. Its totient is φ = 316320.

The previous prime is 317857. The next prime is 317887. The reversal of 317879 is 978713.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 317879 - 2¹² = 313783 is a prime.

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 317879.

It is not an unprimeable number, because it can be changed into a prime (317839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419 + ... + 900.

It is an arithmetic number, because the mean of its divisors is an integer number (79860).

2³¹⁷⁸⁷⁹ is an apocalyptic number.

317879 is a deficient number, since it is larger than the sum of its proper divisors (1561).

317879 is a wasteful number, since it uses less digits than its factorization.

317879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560.

The product of its digits is 10584, while the sum is 35.

The square root of 317879 is about 563.8075912933. The cubic root of 317879 is about 68.2475836291.

The spelling of 317879 in words is "three hundred seventeen thousand, eight hundred seventy-nine".