2298209 has 2 divisors, whose sum is σ = 2298210. Its totient is φ = 2298208.

The previous prime is 2298203. The next prime is 2298211. The reversal of 2298209 is 9028922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1216609 + 1081600 = 1103^2 + 1040^2 .

It is a cyclic number.

It is not a de Polignac number, because 2298209 - 2⁴ = 2298193 is a prime.

It is a Sophie Germain prime.

Together with 2298211, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2298203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1149104 + 1149105.

It is an arithmetic number, because the mean of its divisors is an integer number (1149105).

2^2298209 is an apocalyptic number.

It is an amenable number.

2298209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2298209 is an equidigital number, since it uses as much as digits as its factorization.

2298209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 2298209 is about 1515.9844986015. The cubic root of 2298209 is about 131.9663405147.

The spelling of 2298209 in words is "two million, two hundred ninety-eight thousand, two hundred nine".