12344809 has 2 divisors, whose sum is σ = 12344810. Its totient is φ = 12344808.

The previous prime is 12344803. The next prime is 12344831. The reversal of 12344809 is 90844321.

12344809 is digitally balanced in base 3, 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., 7997584 + 4347225 = 2828^2 + 2085^2 .

It is an emirp because it is prime and its reverse (90844321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12344809 - 2⁷ = 12344681 is a prime.

It is not a weakly prime, because it can be changed into another prime (12344803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6172404 + 6172405.

It is an arithmetic number, because the mean of its divisors is an integer number (6172405).

Almost surely, 2^12344809 is an apocalyptic number.

It is an amenable number.

12344809 is a deficient number, since it is larger than the sum of its proper divisors (1).

12344809 is an equidigital number, since it uses as much as digits as its factorization.

12344809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 12344809 is about 3513.5180375231. The cubic root of 12344809 is about 231.1149955602.

The spelling of 12344809 in words is "twelve million, three hundred forty-four thousand, eight hundred nine".