809793199 has 2 divisors, whose sum is σ = 809793200. Its totient is φ = 809793198.

The previous prime is 809793133. The next prime is 809793203. The reversal of 809793199 is 991397908.

809793199 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 809793199 - 2¹⁷ = 809662127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (809793109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404896599 + 404896600.

It is an arithmetic number, because the mean of its divisors is an integer number (404896600).

Almost surely, 2^809793199 is an apocalyptic number.

809793199 is a deficient number, since it is larger than the sum of its proper divisors (1).

809793199 is an equidigital number, since it uses as much as digits as its factorization.

809793199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1102248, while the sum is 55.

The square root of 809793199 is about 28456.8655863572. The cubic root of 809793199 is about 932.0904143191.

The spelling of 809793199 in words is "eight hundred nine million, seven hundred ninety-three thousand, one hundred ninety-nine".