318317 has 4 divisors (see below), whose sum is σ = 323136. Its totient is φ = 313500.

The previous prime is 318313. The next prime is 318319. The reversal of 318317 is 713813.

It is a happy number.

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 318317 - 2² = 318313 is a prime.

It is a Duffinian number.

It is a plaindrome in base 8.

It is a zygodrome in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 318292 and 318301.

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 318317.

It is not an unprimeable number, because it can be changed into a prime (318313) 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, 2309 + ... + 2442.

It is an arithmetic number, because the mean of its divisors is an integer number (80784).

2³¹⁸³¹⁷ is an apocalyptic number.

It is an amenable number.

318317 is a deficient number, since it is larger than the sum of its proper divisors (4819).

318317 is an equidigital number, since it uses as much as digits as its factorization.

318317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4818.

The product of its digits is 504, while the sum is 23.

The square root of 318317 is about 564.1958879680. The cubic root of 318317 is about 68.2789149666.

The spelling of 318317 in words is "three hundred eighteen thousand, three hundred seventeen".