809896 has 16 divisors (see below), whose sum is σ = 1542240. Its totient is φ = 398640.

The previous prime is 809891. The next prime is 809903. The reversal of 809896 is 698908.

It is a happy number.

809896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (809891) by changing a digit.

809896 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, 220 + ... + 1291.

It is an arithmetic number, because the mean of its divisors is an integer number (96390).

2⁸⁰⁹⁸⁹⁶ is an apocalyptic number.

It is an amenable number.

809896 is a deficient number, since it is larger than the sum of its proper divisors (732344).

809896 is a wasteful number, since it uses less digits than its factorization.

809896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1584 (or 1580 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 809896 is about 899.9422203675. The cubic root of 809896 is about 93.2129854748.

The spelling of 809896 in words is "eight hundred nine thousand, eight hundred ninety-six".