809922 has 16 divisors (see below), whose sum is σ = 1690560. Its totient is φ = 258192.

The previous prime is 809917. The next prime is 809929. The reversal of 809922 is 229908.

809922 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 809922.

It is not an unprimeable number, because it can be changed into a prime (809929) 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, 2797 + ... + 3072.

It is an arithmetic number, because the mean of its divisors is an integer number (105660).

2⁸⁰⁹⁹²² is an apocalyptic number.

809922 is an abundant number, since it is smaller than the sum of its proper divisors (880638).

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

809922 is a wasteful number, since it uses less digits than its factorization.

809922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5897.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 809922 is about 899.9566656234. The cubic root of 809922 is about 93.2139829327.

The spelling of 809922 in words is "eight hundred nine thousand, nine hundred twenty-two".