317339749 has 2 divisors, whose sum is σ = 317339750. Its totient is φ = 317339748.

The previous prime is 317339707. The next prime is 317339783. The reversal of 317339749 is 947933713.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 241336225 + 76003524 = 15535^2 + 8718^2 .

It is a cyclic number.

It is not a de Polignac number, because 317339749 - 2⁷ = 317339621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 317339699 and 317339708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317339849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158669874 + 158669875.

It is an arithmetic number, because the mean of its divisors is an integer number (158669875).

Almost surely, 2^317339749 is an apocalyptic number.

It is an amenable number.

317339749 is a deficient number, since it is larger than the sum of its proper divisors (1).

317339749 is an equidigital number, since it uses as much as digits as its factorization.

317339749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 428652, while the sum is 46.

The square root of 317339749 is about 17814.0323621576. The cubic root of 317339749 is about 682.0896997625.

The spelling of 317339749 in words is "three hundred seventeen million, three hundred thirty-nine thousand, seven hundred forty-nine".