2209343 has 2 divisors, whose sum is σ = 2209344. Its totient is φ = 2209342.

The previous prime is 2209331. The next prime is 2209409. The reversal of 2209343 is 3439022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2209343 - 2⁴ = 2209327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2209313) 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, 1104671 + 1104672.

It is an arithmetic number, because the mean of its divisors is an integer number (1104672).

2^2209343 is an apocalyptic number.

2209343 is a deficient number, since it is larger than the sum of its proper divisors (1).

2209343 is an equidigital number, since it uses as much as digits as its factorization.

2209343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 2209343 is about 1486.3858852936. The cubic root of 2209343 is about 130.2429971810.

It can be divided in two parts, 2209 and 343, that added together give a palindrome (2552).

The spelling of 2209343 in words is "two million, two hundred nine thousand, three hundred forty-three".