317248393 has 24 divisors (see below), whose sum is σ = 403915680. Its totient is φ = 246395520.

The previous prime is 317248381. The next prime is 317248403. The reversal of 317248393 is 393842713.

It is not a de Polignac number, because 317248393 - 2²⁵ = 283693961 is a prime.

It is a super-2 number, since 2×317248393² = 201293085722164898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (317248193) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 203505 + ... + 205057.

It is an arithmetic number, because the mean of its divisors is an integer number (16829820).

Almost surely, 2^317248393 is an apocalyptic number.

It is an amenable number.

317248393 is a deficient number, since it is larger than the sum of its proper divisors (86667287).

317248393 is a wasteful number, since it uses less digits than its factorization.

317248393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1957 (or 1950 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The square root of 317248393 is about 17811.4680192285. The cubic root of 317248393 is about 682.0242399860.

The spelling of 317248393 in words is "three hundred seventeen million, two hundred forty-eight thousand, three hundred ninety-three".