9924444209 has 2 divisors, whose sum is σ = 9924444210. Its totient is φ = 9924444208.

The previous prime is 9924444203. The next prime is 9924444241. The reversal of 9924444209 is 9024444299.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5177234209 + 4747210000 = 71953^2 + 68900^2 .

It is a cyclic number.

It is not a de Polignac number, because 9924444209 - 2⁴ = 9924444193 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (9924444203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4962222104 + 4962222105.

It is an arithmetic number, because the mean of its divisors is an integer number (4962222105).

Almost surely, 2^9924444209 is an apocalyptic number.

It is an amenable number.

9924444209 is a deficient number, since it is larger than the sum of its proper divisors (1).

9924444209 is an equidigital number, since it uses as much as digits as its factorization.

9924444209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 47.

The square root of 9924444209 is about 99621.5047517352. The cubic root of 9924444209 is about 2148.9949662821.

The spelling of 9924444209 in words is "nine billion, nine hundred twenty-four million, four hundred forty-four thousand, two hundred nine".