2197344209 has 2 divisors, whose sum is σ = 2197344210. Its totient is φ = 2197344208.

The previous prime is 2197344203. The next prime is 2197344277. The reversal of 2197344209 is 9024437912.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2059798225 + 137545984 = 45385^2 + 11728^2 .

It is a cyclic number.

It is not a de Polignac number, because 2197344209 - 2¹² = 2197340113 is a prime.

It is not a weakly prime, because it can be changed into another prime (2197344203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1098672104 + 1098672105.

It is an arithmetic number, because the mean of its divisors is an integer number (1098672105).

Almost surely, 2^2197344209 is an apocalyptic number.

It is an amenable number.

2197344209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2197344209 is an equidigital number, since it uses as much as digits as its factorization.

2197344209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 2197344209 is about 46875.8382218388. The cubic root of 2197344209 is about 1300.0678877762.

The spelling of 2197344209 in words is "two billion, one hundred ninety-seven million, three hundred forty-four thousand, two hundred nine".