316804517 has 2 divisors, whose sum is σ = 316804518. Its totient is φ = 316804516.

The previous prime is 316804483. The next prime is 316804519. The reversal of 316804517 is 715408613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 282710596 + 34093921 = 16814^2 + 5839^2 .

It is an emirp because it is prime and its reverse (715408613) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 316804517 - 2⁸ = 316804261 is a prime.

Together with 316804519, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316804519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158402258 + 158402259.

It is an arithmetic number, because the mean of its divisors is an integer number (158402259).

Almost surely, 2^316804517 is an apocalyptic number.

It is an amenable number.

316804517 is a deficient number, since it is larger than the sum of its proper divisors (1).

316804517 is an equidigital number, since it uses as much as digits as its factorization.

316804517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 316804517 is about 17799.0032586097. The cubic root of 316804517 is about 681.7060082812.

The spelling of 316804517 in words is "three hundred sixteen million, eight hundred four thousand, five hundred seventeen".