313247685 has 16 divisors (see below), whose sum is σ = 503797824. Its totient is φ = 166198272.

The previous prime is 313247681. The next prime is 313247707. The reversal of 313247685 is 586742313.

It is not a de Polignac number, because 313247685 - 2² = 313247681 is a prime.

It is a super-2 number, since 2×313247685² = 196248224315718450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313247681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51207 + ... + 56996.

It is an arithmetic number, because the mean of its divisors is an integer number (31487364).

Almost surely, 2^313247685 is an apocalyptic number.

It is an amenable number.

313247685 is a deficient number, since it is larger than the sum of its proper divisors (190550139).

313247685 is a wasteful number, since it uses less digits than its factorization.

313247685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108404.

The product of its digits is 120960, while the sum is 39.

The square root of 313247685 is about 17698.8046206516. The cubic root of 313247685 is about 679.1451809146.

Adding to 313247685 its reverse (586742313), we get a palindrome (899989998).

The spelling of 313247685 in words is "three hundred thirteen million, two hundred forty-seven thousand, six hundred eighty-five".