312716797 has 2 divisors, whose sum is σ = 312716798. Its totient is φ = 312716796.

The previous prime is 312716713. The next prime is 312716843. The reversal of 312716797 is 797617213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 284563161 + 28153636 = 16869^2 + 5306^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312716797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312716707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156358398 + 156358399.

It is an arithmetic number, because the mean of its divisors is an integer number (156358399).

Almost surely, 2^312716797 is an apocalyptic number.

It is an amenable number.

312716797 is a deficient number, since it is larger than the sum of its proper divisors (1).

312716797 is an equidigital number, since it uses as much as digits as its factorization.

312716797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 111132, while the sum is 43.

The square root of 312716797 is about 17683.8004116762. The cubic root of 312716797 is about 678.7612952322.

The spelling of 312716797 in words is "three hundred twelve million, seven hundred sixteen thousand, seven hundred ninety-seven".