317574947 has 2 divisors, whose sum is σ = 317574948. Its totient is φ = 317574946.

The previous prime is 317574923. The next prime is 317574953. The reversal of 317574947 is 749475713.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-317574947 is a prime.

It is a super-4 number, since 4×317574947⁴ (a number of 35 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (317570947) 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, 158787473 + 158787474.

It is an arithmetic number, because the mean of its divisors is an integer number (158787474).

Almost surely, 2^317574947 is an apocalyptic number.

317574947 is a deficient number, since it is larger than the sum of its proper divisors (1).

317574947 is an equidigital number, since it uses as much as digits as its factorization.

317574947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 740880, while the sum is 47.

The square root of 317574947 is about 17820.6326206451. The cubic root of 317574947 is about 682.2581695876.

The spelling of 317574947 in words is "three hundred seventeen million, five hundred seventy-four thousand, nine hundred forty-seven".