817996 has 12 divisors (see below), whose sum is σ = 1470448. Its totient is φ = 397872.

The previous prime is 817987. The next prime is 818011. The reversal of 817996 is 699718.

It is a d-powerful number, because it can be written as 8 + 1 + 9⁴ + 7² + 9⁶ + 6⁷ .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 817996.

It is an unprimeable number.

817996 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, 2616 + ... + 2911.

2⁸¹⁷⁹⁹⁶ is an apocalyptic number.

It is an amenable number.

817996 is a deficient number, since it is larger than the sum of its proper divisors (652452).

817996 is a wasteful number, since it uses less digits than its factorization.

817996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5568 (or 5566 counting only the distinct ones).

The product of its digits is 27216, while the sum is 40.

The square root of 817996 is about 904.4313130360. The cubic root of 817996 is about 93.5227050773.

The spelling of 817996 in words is "eight hundred seventeen thousand, nine hundred ninety-six".