809285223 has 16 divisors (see below), whose sum is σ = 1117509120. Its totient is φ = 520334304.

The previous prime is 809285207. The next prime is 809285261. The reversal of 809285223 is 322582908.

It is not a de Polignac number, because 809285223 - 2⁴ = 809285207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (809285203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80790 + ... + 90252.

It is an arithmetic number, because the mean of its divisors is an integer number (69844320).

Almost surely, 2^809285223 is an apocalyptic number.

809285223 is a deficient number, since it is larger than the sum of its proper divisors (308223897).

809285223 is a wasteful number, since it uses less digits than its factorization.

809285223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10478.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 809285223 is about 28447.9388181288. The cubic root of 809285223 is about 931.8954762376.

The spelling of 809285223 in words is "eight hundred nine million, two hundred eighty-five thousand, two hundred twenty-three".