317871 has 16 divisors (see below), whose sum is σ = 481120. Its totient is φ = 207360.

The previous prime is 317857. The next prime is 317887. The reversal of 317871 is 178713.

It is not a de Polignac number, because 317871 - 2⁵ = 317839 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 317871.

It is not an unprimeable number, because it can be changed into a prime (317831) 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, 1551 + ... + 1743.

It is an arithmetic number, because the mean of its divisors is an integer number (30070).

2³¹⁷⁸⁷¹ is an apocalyptic number.

317871 is a deficient number, since it is larger than the sum of its proper divisors (163249).

317871 is a wasteful number, since it uses less digits than its factorization.

317871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263 (or 257 counting only the distinct ones).

The product of its digits is 1176, while the sum is 27.

The square root of 317871 is about 563.8004966298. The cubic root of 317871 is about 68.2470110996.

It can be divided in two parts, 3178 and 71, that added together give a square (3249 = 57²).

The spelling of 317871 in words is "three hundred seventeen thousand, eight hundred seventy-one".