316657 has 6 divisors (see below), whose sum is σ = 348194. Its totient is φ = 287760.

The previous prime is 316649. The next prime is 316661. The reversal of 316657 is 756613.

It can be written as a sum of positive squares in only one way, i.e., 314721 + 1936 = 561^2 + 44^2 .

It is not a de Polignac number, because 316657 - 2³ = 316649 is a prime.

It is a super-4 number, since 4×316657⁴ (a number of 23 digits) contains 4444 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (316637) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1188 + ... + 1429.

2³¹⁶⁶⁵⁷ is an apocalyptic number.

It is an amenable number.

316657 is a deficient number, since it is larger than the sum of its proper divisors (31537).

316657 is a wasteful number, since it uses less digits than its factorization.

316657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639 (or 2628 counting only the distinct ones).

The product of its digits is 3780, while the sum is 28.

The square root of 316657 is about 562.7228447469. The cubic root of 316657 is about 68.1600181888.

It can be divided in two parts, 3166 and 57, that added together give a palindrome (3223).

The spelling of 316657 in words is "three hundred sixteen thousand, six hundred fifty-seven".