316317647 has 2 divisors, whose sum is σ = 316317648. Its totient is φ = 316317646.

The previous prime is 316317629. The next prime is 316317697. The reversal of 316317647 is 746713613.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-316317647 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 316317647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316317607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158158823 + 158158824.

It is an arithmetic number, because the mean of its divisors is an integer number (158158824).

Almost surely, 2^316317647 is an apocalyptic number.

316317647 is a deficient number, since it is larger than the sum of its proper divisors (1).

316317647 is an equidigital number, since it uses as much as digits as its factorization.

316317647 is an odious number, because the sum of its binary digits is odd.

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

The square root of 316317647 is about 17785.3211103989. The cubic root of 316317647 is about 681.3566105129.

The spelling of 316317647 in words is "three hundred sixteen million, three hundred seventeen thousand, six hundred forty-seven".