2409997 has 2 divisors, whose sum is σ = 2409998. Its totient is φ = 2409996.

The previous prime is 2409983. The next prime is 2410027. The reversal of 2409997 is 7999042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2390116 + 19881 = 1546^2 + 141^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2409997 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2409907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1204998 + 1204999.

It is an arithmetic number, because the mean of its divisors is an integer number (1204999).

2^2409997 is an apocalyptic number.

It is an amenable number.

2409997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2409997 is an equidigital number, since it uses as much as digits as its factorization.

2409997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 2409997 is about 1552.4165033908. The cubic root of 2409997 is about 134.0722303093.

The spelling of 2409997 in words is "two million, four hundred nine thousand, nine hundred ninety-seven".