317943 has 6 divisors (see below), whose sum is σ = 459264. Its totient is φ = 211956.

The previous prime is 317923. The next prime is 317957. The reversal of 317943 is 349713.

It is not a de Polignac number, because 317943 - 2⁹ = 317431 is a prime.

317943 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17655 + ... + 17672.

It is an arithmetic number, because the mean of its divisors is an integer number (76544).

2³¹⁷⁹⁴³ is an apocalyptic number.

317943 is a deficient number, since it is larger than the sum of its proper divisors (141321).

317943 is a wasteful number, since it uses less digits than its factorization.

317943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35333 (or 35330 counting only the distinct ones).

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

The square root of 317943 is about 563.8643453881. The cubic root of 317943 is about 68.2521635187.

The spelling of 317943 in words is "three hundred seventeen thousand, nine hundred forty-three".