317842417 has 4 divisors (see below), whose sum is σ = 317879716. Its totient is φ = 317805120.

The previous prime is 317842409. The next prime is 317842429. The reversal of 317842417 is 714248713.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 146991376 + 170851041 = 12124^2 + 13071^2 .

It is a cyclic number.

It is not a de Polignac number, because 317842417 - 2³ = 317842409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (317842477) 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 in 3 ways as a sum of consecutive naturals, for example, 1117 + ... + 25237.

It is an arithmetic number, because the mean of its divisors is an integer number (79469929).

Almost surely, 2^317842417 is an apocalyptic number.

It is an amenable number.

317842417 is a deficient number, since it is larger than the sum of its proper divisors (37299).

317842417 is a wasteful number, since it uses less digits than its factorization.

317842417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37298.

The product of its digits is 37632, while the sum is 37.

The square root of 317842417 is about 17828.1355446945. The cubic root of 317842417 is about 682.4496544507.

The spelling of 317842417 in words is "three hundred seventeen million, eight hundred forty-two thousand, four hundred seventeen".