317288872 has 8 divisors (see below), whose sum is σ = 594916650. Its totient is φ = 158644432.

The previous prime is 317288789. The next prime is 317288891. The reversal of 317288872 is 278882713.

It can be written as a sum of positive squares in only one way, i.e., 257474116 + 59814756 = 16046^2 + 7734^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19830547 + ... + 19830562.

Almost surely, 2^317288872 is an apocalyptic number.

It is an amenable number.

317288872 is a deficient number, since it is larger than the sum of its proper divisors (277627778).

317288872 is a wasteful number, since it uses less digits than its factorization.

317288872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39661115 (or 39661111 counting only the distinct ones).

The product of its digits is 301056, while the sum is 46.

The square root of 317288872 is about 17812.6043014490. The cubic root of 317288872 is about 682.0532461588.

The spelling of 317288872 in words is "three hundred seventeen million, two hundred eighty-eight thousand, eight hundred seventy-two".