317197427 has 4 divisors (see below), whose sum is σ = 317265600. Its totient is φ = 317129256.

The previous prime is 317197423. The next prime is 317197429. The reversal of 317197427 is 724791713.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724791713 = 20183 ⋅35911.

It is a cyclic number.

It is not a de Polignac number, because 317197427 - 2² = 317197423 is a prime.

It is a super-2 number, since 2×317197427² = 201228415390840658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (317197423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26552 + ... + 36597.

It is an arithmetic number, because the mean of its divisors is an integer number (79316400).

Almost surely, 2^317197427 is an apocalyptic number.

317197427 is a deficient number, since it is larger than the sum of its proper divisors (68173).

317197427 is an equidigital number, since it uses as much as digits as its factorization.

317197427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68172.

The product of its digits is 74088, while the sum is 41.

The square root of 317197427 is about 17810.0372543125. The cubic root of 317197427 is about 681.9877155993.

The spelling of 317197427 in words is "three hundred seventeen million, one hundred ninety-seven thousand, four hundred twenty-seven".