443606089 has 2 divisors, whose sum is σ = 443606090. Its totient is φ = 443606088.

The previous prime is 443606087. The next prime is 443606099. The reversal of 443606089 is 980606344.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 288728064 + 154878025 = 16992^2 + 12445^2 .

It is a cyclic number.

It is not a de Polignac number, because 443606089 - 2¹ = 443606087 is a prime.

Together with 443606087, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (443606087) 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, 221803044 + 221803045.

It is an arithmetic number, because the mean of its divisors is an integer number (221803045).

Almost surely, 2^443606089 is an apocalyptic number.

It is an amenable number.

443606089 is a deficient number, since it is larger than the sum of its proper divisors (1).

443606089 is an equidigital number, since it uses as much as digits as its factorization.

443606089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 443606089 is about 21061.9583372487. The cubic root of 443606089 is about 762.6626876370.

The spelling of 443606089 in words is "four hundred forty-three million, six hundred six thousand, eighty-nine".