809282849 has 2 divisors, whose sum is σ = 809282850. Its totient is φ = 809282848.

The previous prime is 809282821. The next prime is 809282867. The reversal of 809282849 is 948282908.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 721298449 + 87984400 = 26857^2 + 9380^2 .

It is a cyclic number.

It is not a de Polignac number, because 809282849 - 2¹² = 809278753 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 809282797 and 809282806.

It is not a weakly prime, because it can be changed into another prime (809282879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404641424 + 404641425.

It is an arithmetic number, because the mean of its divisors is an integer number (404641425).

Almost surely, 2^809282849 is an apocalyptic number.

It is an amenable number.

809282849 is a deficient number, since it is larger than the sum of its proper divisors (1).

809282849 is an equidigital number, since it uses as much as digits as its factorization.

809282849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 663552, while the sum is 50.

The square root of 809282849 is about 28447.8970927554. The cubic root of 809282849 is about 931.8945650129.

The spelling of 809282849 in words is "eight hundred nine million, two hundred eighty-two thousand, eight hundred forty-nine".