316730873 has 2 divisors, whose sum is σ = 316730874. Its totient is φ = 316730872.

The previous prime is 316730857. The next prime is 316730891. The reversal of 316730873 is 378037613.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 305655289 + 11075584 = 17483^2 + 3328^2 .

It is an emirp because it is prime and its reverse (378037613) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 316730873 - 2⁴ = 316730857 is a prime.

It is a super-2 number, since 2×316730873² = 200636891822684258, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (316733873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158365436 + 158365437.

It is an arithmetic number, because the mean of its divisors is an integer number (158365437).

Almost surely, 2^316730873 is an apocalyptic number.

It is an amenable number.

316730873 is a deficient number, since it is larger than the sum of its proper divisors (1).

316730873 is an equidigital number, since it uses as much as digits as its factorization.

316730873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 316730873 is about 17796.9343708404. The cubic root of 316730873 is about 681.6531813325.

The spelling of 316730873 in words is "three hundred sixteen million, seven hundred thirty thousand, eight hundred seventy-three".