316686869 has 4 divisors (see below), whose sum is σ = 317550144. Its totient is φ = 315823596.

The previous prime is 316686841. The next prime is 316686883. The reversal of 316686869 is 968686613.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 316686869 - 2⁸ = 316686613 is a prime.

It is a super-2 number, since 2×316686869² = 200581145994046322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 316686869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316686899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431087 + ... + 431820.

It is an arithmetic number, because the mean of its divisors is an integer number (79387536).

Almost surely, 2^316686869 is an apocalyptic number.

It is an amenable number.

316686869 is a deficient number, since it is larger than the sum of its proper divisors (863275).

316686869 is an equidigital number, since it uses as much as digits as its factorization.

316686869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863274.

The product of its digits is 2239488, while the sum is 53.

The square root of 316686869 is about 17795.6980475619. The cubic root of 316686869 is about 681.6216120957.

The spelling of 316686869 in words is "three hundred sixteen million, six hundred eighty-six thousand, eight hundred sixty-nine".