317403689 has 2 divisors, whose sum is σ = 317403690. Its totient is φ = 317403688.

The previous prime is 317403641. The next prime is 317403701. The reversal of 317403689 is 986304713.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 279458089 + 37945600 = 16717^2 + 6160^2 .

It is a cyclic number.

It is not a de Polignac number, because 317403689 - 2⁸ = 317403433 is a prime.

It is not a weakly prime, because it can be changed into another prime (317403629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158701844 + 158701845.

It is an arithmetic number, because the mean of its divisors is an integer number (158701845).

Almost surely, 2^317403689 is an apocalyptic number.

It is an amenable number.

317403689 is a deficient number, since it is larger than the sum of its proper divisors (1).

317403689 is an equidigital number, since it uses as much as digits as its factorization.

317403689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 317403689 is about 17815.8269243951. The cubic root of 317403689 is about 682.1355075408.

The spelling of 317403689 in words is "three hundred seventeen million, four hundred three thousand, six hundred eighty-nine".