2232809 has 2 divisors, whose sum is σ = 2232810. Its totient is φ = 2232808.

The previous prime is 2232793. The next prime is 2232821. The reversal of 2232809 is 9082322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1763584 + 469225 = 1328^2 + 685^2 .

It is a cyclic number.

It is not a de Polignac number, because 2232809 - 2⁴ = 2232793 is a prime.

It is a super-3 number, since 3×2232809³ = 33394579313346753387, which contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2232859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1116404 + 1116405.

It is an arithmetic number, because the mean of its divisors is an integer number (1116405).

2^2232809 is an apocalyptic number.

It is an amenable number.

2232809 is a deficient number, since it is larger than the sum of its proper divisors (1).

2232809 is an equidigital number, since it uses as much as digits as its factorization.

2232809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 2232809 is about 1494.2586790780. The cubic root of 2232809 is about 130.7024889925.

The spelling of 2232809 in words is "two million, two hundred thirty-two thousand, eight hundred nine".