317489 has 2 divisors, whose sum is σ = 317490. Its totient is φ = 317488.

The previous prime is 317483. The next prime is 317491. The reversal of 317489 is 984713.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 270400 + 47089 = 520^2 + 217^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-317489 is a prime.

It is a Sophie Germain prime.

Together with 317491, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (317483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158744 + 158745.

It is an arithmetic number, because the mean of its divisors is an integer number (158745).

2³¹⁷⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

317489 is a deficient number, since it is larger than the sum of its proper divisors (1).

317489 is an equidigital number, since it uses as much as digits as its factorization.

317489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 32.

The square root of 317489 is about 563.4616224731. The cubic root of 317489 is about 68.2196616313.

The spelling of 317489 in words is "three hundred seventeen thousand, four hundred eighty-nine".