817328 has 20 divisors (see below), whose sum is σ = 1653168. Its totient is φ = 390720.

The previous prime is 817321. The next prime is 817331. The reversal of 817328 is 823718.

It is a plaindrome in base 15.

It is a zygodrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 817328.

It is not an unprimeable number, because it can be changed into a prime (817321) by changing a digit.

817328 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, 743 + ... + 1478.

2⁸¹⁷³²⁸ is an apocalyptic number.

It is an amenable number.

817328 is an abundant number, since it is smaller than the sum of its proper divisors (835840).

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

817328 is a wasteful number, since it uses less digits than its factorization.

817328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2252 (or 2246 counting only the distinct ones).

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

The square root of 817328 is about 904.0619447803. The cubic root of 817328 is about 93.4972403315.

The spelling of 817328 in words is "eight hundred seventeen thousand, three hundred twenty-eight".