317930 has 8 divisors (see below), whose sum is σ = 572292. Its totient is φ = 127168.

The previous prime is 317923. The next prime is 317957. The reversal of 317930 is 39713.

It can be written as a sum of positive squares in 2 ways, for example, as 316969 + 961 = 563^2 + 31^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 317896 and 317905.

It is an unprimeable number.

317930 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15887 + ... + 15906.

2³¹⁷⁹³⁰ is an apocalyptic number.

317930 is a deficient number, since it is larger than the sum of its proper divisors (254362).

317930 is a wasteful number, since it uses less digits than its factorization.

317930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31800.

The product of its (nonzero) digits is 567, while the sum is 23.

The square root of 317930 is about 563.8528176750. The cubic root of 317930 is about 68.2512332784.

The spelling of 317930 in words is "three hundred seventeen thousand, nine hundred thirty".