316517 has 4 divisors (see below), whose sum is σ = 317856. Its totient is φ = 315180.

The previous prime is 316507. The next prime is 316531. The reversal of 316517 is 715613.

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 316517 - 2⁴ = 316501 is a prime.

It is a super-2 number, since 2×316517² = 200366022578, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 316492 and 316501.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 316517.

It is not an unprimeable number, because it can be changed into a prime (316507) 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, 209 + ... + 822.

It is an arithmetic number, because the mean of its divisors is an integer number (79464).

2³¹⁶⁵¹⁷ is an apocalyptic number.

It is an amenable number.

316517 is a deficient number, since it is larger than the sum of its proper divisors (1339).

316517 is a wasteful number, since it uses less digits than its factorization.

316517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338.

The product of its digits is 630, while the sum is 23.

The square root of 316517 is about 562.5984358315. The cubic root of 316517 is about 68.1499717672.

The spelling of 316517 in words is "three hundred sixteen thousand, five hundred seventeen".