317320 has 16 divisors (see below), whose sum is σ = 714060. Its totient is φ = 126912.

The previous prime is 317279. The next prime is 317321. The reversal of 317320 is 23713.

It can be written as a sum of positive squares in 2 ways, for example, as 306916 + 10404 = 554^2 + 102^2 .

It is a junction number, because it is equal to n+sod(n) for n = 317294 and 317303.

It is not an unprimeable number, because it can be changed into a prime (317321) by changing a digit.

317320 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3927 + ... + 4006.

2³¹⁷³²⁰ is an apocalyptic number.

It is an amenable number.

317320 is an abundant number, since it is smaller than the sum of its proper divisors (396740).

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

317320 is a wasteful number, since it uses less digits than its factorization.

317320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7944 (or 7940 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 16.

The square root of 317320 is about 563.3116366630. The cubic root of 317320 is about 68.2075549976.

The spelling of 317320 in words is "three hundred seventeen thousand, three hundred twenty", and thus it is an iban number.