809403223 has 2 divisors, whose sum is σ = 809403224. Its totient is φ = 809403222.

The previous prime is 809403187. The next prime is 809403251. The reversal of 809403223 is 322304908.

809403223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 809403223 - 2²⁵ = 775848791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (809403523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404701611 + 404701612.

It is an arithmetic number, because the mean of its divisors is an integer number (404701612).

Almost surely, 2^809403223 is an apocalyptic number.

809403223 is a deficient number, since it is larger than the sum of its proper divisors (1).

809403223 is an equidigital number, since it uses as much as digits as its factorization.

809403223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 809403223 is about 28450.0127064998. The cubic root of 809403223 is about 931.9407665419.

The spelling of 809403223 in words is "eight hundred nine million, four hundred three thousand, two hundred twenty-three".