2292809 has 2 divisors, whose sum is σ = 2292810. Its totient is φ = 2292808.

The previous prime is 2292793. The next prime is 2292859. The reversal of 2292809 is 9082922.

2292809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2166784 + 126025 = 1472^2 + 355^2 .

It is a cyclic number.

It is not a de Polignac number, because 2292809 - 2⁴ = 2292793 is a prime.

It is a super-2 number, since 2×2292809² = 10513946220962, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2292859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1146404 + 1146405.

It is an arithmetic number, because the mean of its divisors is an integer number (1146405).

2^2292809 is an apocalyptic number.

It is an amenable number.

2292809 is a deficient number, since it is larger than the sum of its proper divisors (1).

2292809 is an equidigital number, since it uses as much as digits as its factorization.

2292809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 2292809 is about 1514.2024303243. The cubic root of 2292809 is about 131.8629009662.

The spelling of 2292809 in words is "two million, two hundred ninety-two thousand, eight hundred nine".