317947494 has 32 divisors (see below), whose sum is σ = 647887104. Its totient is φ = 103992480.

The previous prime is 317947489. The next prime is 317947499. The reversal of 317947494 is 494749713.

It is an interprime number because it is at equal distance from previous prime (317947489) and next prime (317947499).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317947499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205287 + ... + 206829.

It is an arithmetic number, because the mean of its divisors is an integer number (20246472).

Almost surely, 2^317947494 is an apocalyptic number.

317947494 is an abundant number, since it is smaller than the sum of its proper divisors (329939610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

317947494 is a wasteful number, since it uses less digits than its factorization.

317947494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172.

The product of its digits is 762048, while the sum is 48.

The square root of 317947494 is about 17831.0822442161. The cubic root of 317947494 is about 682.5248508978.

The spelling of 317947494 in words is "three hundred seventeen million, nine hundred forty-seven thousand, four hundred ninety-four".