316997 has 4 divisors (see below), whose sum is σ = 318240. Its totient is φ = 315756.

The previous prime is 316991. The next prime is 317003. The reversal of 316997 is 799613.

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, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (316991) and next prime (317003).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-316997 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 316997.

It is not an unprimeable number, because it can be changed into a prime (316991) 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, 83 + ... + 800.

It is an arithmetic number, because the mean of its divisors is an integer number (79560).

2³¹⁶⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

316997 is a deficient number, since it is larger than the sum of its proper divisors (1243).

316997 is an equidigital number, since it uses as much as digits as its factorization.

316997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242.

The product of its digits is 10206, while the sum is 35.

The square root of 316997 is about 563.0248662359. The cubic root of 316997 is about 68.1844043194.

The spelling of 316997 in words is "three hundred sixteen thousand, nine hundred ninety-seven".