2349209 has 2 divisors, whose sum is σ = 2349210. Its totient is φ = 2349208.

The previous prime is 2349181. The next prime is 2349233. The reversal of 2349209 is 9029432.

2349209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2310400 + 38809 = 1520^2 + 197^2 .

It is a cyclic number.

It is not a de Polignac number, because 2349209 - 2²⁰ = 1300633 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2349709) 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, 1174604 + 1174605.

It is an arithmetic number, because the mean of its divisors is an integer number (1174605).

2^2349209 is an apocalyptic number.

It is an amenable number.

2349209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2349209 is an equidigital number, since it uses as much as digits as its factorization.

2349209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 2349209 is about 1532.7129542090. The cubic root of 2349209 is about 132.9353710156.

The spelling of 2349209 in words is "two million, three hundred forty-nine thousand, two hundred nine".