317828 has 12 divisors (see below), whose sum is σ = 635712. Its totient is φ = 136200.

The previous prime is 317827. The next prime is 317831. The reversal of 317828 is 828713.

317828 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 317828.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 317828.

It is not an unprimeable number, because it can be changed into a prime (317827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5648 + ... + 5703.

It is an arithmetic number, because the mean of its divisors is an integer number (52976).

2³¹⁷⁸²⁸ is an apocalyptic number.

It is an amenable number.

317828 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

317828 is a wasteful number, since it uses less digits than its factorization.

317828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11362 (or 11360 counting only the distinct ones).

The product of its digits is 2688, while the sum is 29.

The square root of 317828 is about 563.7623612835. The cubic root of 317828 is about 68.2439335894.

The spelling of 317828 in words is "three hundred seventeen thousand, eight hundred twenty-eight".