317042685 has 12 divisors (see below), whose sum is σ = 549540732. Its totient is φ = 169089408.

The previous prime is 317042669. The next prime is 317042699. The reversal of 317042685 is 586240713.

It can be written as a sum of positive squares in 2 ways, for example, as 235284921 + 81757764 = 15339^2 + 9042^2 .

It is not a de Polignac number, because 317042685 - 2⁴ = 317042669 is a prime.

It is a super-2 number, since 2×317042685² = 201032128224018450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3522652 + ... + 3522741.

It is an arithmetic number, because the mean of its divisors is an integer number (45795061).

Almost surely, 2^317042685 is an apocalyptic number.

It is an amenable number.

317042685 is a deficient number, since it is larger than the sum of its proper divisors (232498047).

317042685 is a wasteful number, since it uses less digits than its factorization.

317042685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7045404 (or 7045401 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 317042685 is about 17805.6924886397. The cubic root of 317042685 is about 681.8767969729.

The spelling of 317042685 in words is "three hundred seventeen million, forty-two thousand, six hundred eighty-five".