2297209 has 4 divisors (see below), whose sum is σ = 2319616. Its totient is φ = 2274804.

The previous prime is 2297203. The next prime is 2297213. The reversal of 2297209 is 9027922.

2297209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2297209 - 2¹⁷ = 2166137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2297203) 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 in 3 ways as a sum of consecutive naturals, for example, 11049 + ... + 11254.

It is an arithmetic number, because the mean of its divisors is an integer number (579904).

2^2297209 is an apocalyptic number.

It is an amenable number.

2297209 is a deficient number, since it is larger than the sum of its proper divisors (22407).

2297209 is a wasteful number, since it uses less digits than its factorization.

2297209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22406.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 2297209 is about 1515.6546440400. The cubic root of 2297209 is about 131.9471972767.

The spelling of 2297209 in words is "two million, two hundred ninety-seven thousand, two hundred nine".