317319828 has 96 divisors (see below), whose sum is σ = 873062400. Its totient is φ = 87816960.

The previous prime is 317319809. The next prime is 317319829. The reversal of 317319828 is 828913713.

317319828 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 317319828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317319829) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 685125 + ... + 685587.

It is an arithmetic number, because the mean of its divisors is an integer number (9094400).

Almost surely, 2^317319828 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 317319828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (436531200).

317319828 is an abundant number, since it is smaller than the sum of its proper divisors (555742572).

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

317319828 is a wasteful number, since it uses less digits than its factorization.

317319828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717 (or 715 counting only the distinct ones).

The product of its digits is 72576, while the sum is 42.

The square root of 317319828 is about 17813.4732155186. The cubic root of 317319828 is about 682.0754267389.

The spelling of 317319828 in words is "three hundred seventeen million, three hundred nineteen thousand, eight hundred twenty-eight".