809996 has 24 divisors (see below), whose sum is σ = 1587600. Its totient is φ = 358400.

The previous prime is 809993. The next prime is 810013. The reversal of 809996 is 699908.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 809996.

It is not an unprimeable number, because it can be changed into a prime (809993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1580 + ... + 2028.

It is an arithmetic number, because the mean of its divisors is an integer number (66150).

2⁸⁰⁹⁹⁹⁶ is an apocalyptic number.

It is an amenable number.

809996 is a deficient number, since it is larger than the sum of its proper divisors (777604).

809996 is a wasteful number, since it uses less digits than its factorization.

809996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505 (or 503 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 809996 is about 899.9977777750. The cubic root of 809996 is about 93.2168217348.

The spelling of 809996 in words is "eight hundred nine thousand, nine hundred ninety-six".