316217 has 16 divisors (see below), whose sum is σ = 388800. Its totient is φ = 253440.

The previous prime is 316213. The next prime is 316219. The reversal of 316217 is 712613.

It is a happy number.

It is not a de Polignac number, because 316217 - 2² = 316213 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 316217.

It is not an unprimeable number, because it can be changed into a prime (316213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3509 + ... + 3597.

It is an arithmetic number, because the mean of its divisors is an integer number (24300).

2³¹⁶²¹⁷ is an apocalyptic number.

It is an amenable number.

316217 is a deficient number, since it is larger than the sum of its proper divisors (72583).

316217 is a wasteful number, since it uses less digits than its factorization.

316217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136.

The product of its digits is 252, while the sum is 20.

The square root of 316217 is about 562.3317526158. The cubic root of 316217 is about 68.1284337410.

The spelling of 316217 in words is "three hundred sixteen thousand, two hundred seventeen".