2297909 has 2 divisors, whose sum is σ = 2297910. Its totient is φ = 2297908.

The previous prime is 2297903. The next prime is 2297923. The reversal of 2297909 is 9097922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2044900 + 253009 = 1430^2 + 503^2 .

It is a cyclic number.

It is not a de Polignac number, because 2297909 - 2⁸ = 2297653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2297903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1148954 + 1148955.

It is an arithmetic number, because the mean of its divisors is an integer number (1148955).

2^2297909 is an apocalyptic number.

It is an amenable number.

2297909 is a deficient number, since it is larger than the sum of its proper divisors (1).

2297909 is an equidigital number, since it uses as much as digits as its factorization.

2297909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 2297909 is about 1515.8855497695. The cubic root of 2297909 is about 131.9605981265.

The spelling of 2297909 in words is "two million, two hundred ninety-seven thousand, nine hundred nine".