4443689 has 2 divisors, whose sum is σ = 4443690. Its totient is φ = 4443688.

The previous prime is 4443653. The next prime is 4443707. The reversal of 4443689 is 9863444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4443664 + 25 = 2108^2 + 5^2 .

It is a cyclic number.

It is not a de Polignac number, because 4443689 - 2⁸ = 4443433 is a prime.

It is not a weakly prime, because it can be changed into another prime (4443619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2221844 + 2221845.

It is an arithmetic number, because the mean of its divisors is an integer number (2221845).

Almost surely, 2^4443689 is an apocalyptic number.

It is an amenable number.

4443689 is a deficient number, since it is larger than the sum of its proper divisors (1).

4443689 is an equidigital number, since it uses as much as digits as its factorization.

4443689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 38.

The square root of 4443689 is about 2108.0059297829. The cubic root of 4443689 is about 164.4048223298.

The spelling of 4443689 in words is "four million, four hundred forty-three thousand, six hundred eighty-nine".