4442208689 has 2 divisors, whose sum is σ = 4442208690. Its totient is φ = 4442208688.

The previous prime is 4442208599. The next prime is 4442208691. The reversal of 4442208689 is 9868022444.

It is a happy number.

4442208689 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3412312225 + 1029896464 = 58415^2 + 32092^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4442208689 is a prime.

Together with 4442208691, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4442208989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2221104344 + 2221104345.

It is an arithmetic number, because the mean of its divisors is an integer number (2221104345).

Almost surely, 2^4442208689 is an apocalyptic number.

It is an amenable number.

4442208689 is a deficient number, since it is larger than the sum of its proper divisors (1).

4442208689 is an equidigital number, since it uses as much as digits as its factorization.

4442208689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 884736, while the sum is 47.

The square root of 4442208689 is about 66649.8963915174. The cubic root of 4442208689 is about 1643.8656442919.

The spelling of 4442208689 in words is "four billion, four hundred forty-two million, two hundred eight thousand, six hundred eighty-nine".