316397 has 4 divisors (see below), whose sum is σ = 324156. Its totient is φ = 308640.

The previous prime is 316391. The next prime is 316403. The reversal of 316397 is 793613.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (316391) and next prime (316403).

It can be written as a sum of positive squares in 2 ways, for example, as 72361 + 244036 = 269^2 + 494^2 .

It is a cyclic number.

It is not a de Polignac number, because 316397 - 2¹⁰ = 315373 is a prime.

It is a Duffinian number.

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 316397.

It is not an unprimeable number, because it can be changed into a prime (316391) 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, 3818 + ... + 3899.

It is an arithmetic number, because the mean of its divisors is an integer number (81039).

2³¹⁶³⁹⁷ is an apocalyptic number.

It is an amenable number.

316397 is a deficient number, since it is larger than the sum of its proper divisors (7759).

316397 is an equidigital number, since it uses as much as digits as its factorization.

316397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7758.

The product of its digits is 3402, while the sum is 29.

The square root of 316397 is about 562.4917777177. The cubic root of 316397 is about 68.1413581905.

The spelling of 316397 in words is "three hundred sixteen thousand, three hundred ninety-seven".