316669 has 4 divisors (see below), whose sum is σ = 318844. Its totient is φ = 314496.

The previous prime is 316663. The next prime is 316681. The reversal of 316669 is 966613.

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 184900 + 131769 = 430^2 + 363^2 .

It is a cyclic number.

It is not a de Polignac number, because 316669 - 2³ = 316661 is a prime.

It is a super-2 number, since 2×316669² = 200558511122, which contains 22 as substring.

It is a Duffinian number.

316669 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 316669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316661) 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, 852 + ... + 1165.

It is an arithmetic number, because the mean of its divisors is an integer number (79711).

2³¹⁶⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

316669 is a deficient number, since it is larger than the sum of its proper divisors (2175).

316669 is a wasteful number, since it uses less digits than its factorization.

316669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2174.

The product of its digits is 5832, while the sum is 31.

The square root of 316669 is about 562.7335070884. The cubic root of 316669 is about 68.1608791729.

The spelling of 316669 in words is "three hundred sixteen thousand, six hundred sixty-nine".