316685 has 4 divisors (see below), whose sum is σ = 380028. Its totient is φ = 253344.

The previous prime is 316681. The next prime is 316691. The reversal of 316685 is 586613.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 98596 + 218089 = 314^2 + 467^2 .

It is a cyclic number.

It is not a de Polignac number, because 316685 - 2² = 316681 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316681) 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, 31664 + ... + 31673.

It is an arithmetic number, because the mean of its divisors is an integer number (95007).

2³¹⁶⁶⁸⁵ is an apocalyptic number.

It is an amenable number.

316685 is a deficient number, since it is larger than the sum of its proper divisors (63343).

316685 is an equidigital number, since it uses as much as digits as its factorization.

316685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63342.

The product of its digits is 4320, while the sum is 29.

The square root of 316685 is about 562.7477232295. The cubic root of 316685 is about 68.1620271178.

It can be divided in two parts, 316 and 685, that added together give a palindrome (1001).

The spelling of 316685 in words is "three hundred sixteen thousand, six hundred eighty-five".