317934247 has 4 divisors (see below), whose sum is σ = 317987856. Its totient is φ = 317880640.

The previous prime is 317934223. The next prime is 317934259. The reversal of 317934247 is 742439713.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 742439713 = 859 ⋅864307.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-317934247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317931247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16618 + ... + 30199.

It is an arithmetic number, because the mean of its divisors is an integer number (79496964).

Almost surely, 2^317934247 is an apocalyptic number.

317934247 is a deficient number, since it is larger than the sum of its proper divisors (53609).

317934247 is an equidigital number, since it uses as much as digits as its factorization.

317934247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53608.

The product of its digits is 127008, while the sum is 40.

The square root of 317934247 is about 17830.7107822431. The cubic root of 317934247 is about 682.5153718355.

The spelling of 317934247 in words is "three hundred seventeen million, nine hundred thirty-four thousand, two hundred forty-seven".