317983 has 2 divisors, whose sum is σ = 317984. Its totient is φ = 317982.

The previous prime is 317971. The next prime is 317987. The reversal of 317983 is 389713.

It is a strong prime.

It is an emirp because it is prime and its reverse (389713) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-317983 is a prime.

It is a super-5 number, since 5×317983⁵ (a number of 29 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317987) 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 as a sum of consecutive naturals, namely, 158991 + 158992.

It is an arithmetic number, because the mean of its divisors is an integer number (158992).

2³¹⁷⁹⁸³ is an apocalyptic number.

317983 is a deficient number, since it is larger than the sum of its proper divisors (1).

317983 is an equidigital number, since it uses as much as digits as its factorization.

317983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 31.

The square root of 317983 is about 563.8998137967. The cubic root of 317983 is about 68.2550256377.

The spelling of 317983 in words is "three hundred seventeen thousand, nine hundred eighty-three".