443243089 has 2 divisors, whose sum is σ = 443243090. Its totient is φ = 443243088.

The previous prime is 443243083. The next prime is 443243111. The reversal of 443243089 is 980342344.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 442050625 + 1192464 = 21025^2 + 1092^2 .

It is a cyclic number.

It is not a de Polignac number, because 443243089 - 2¹¹ = 443241041 is a prime.

It is not a weakly prime, because it can be changed into another prime (443243083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221621544 + 221621545.

It is an arithmetic number, because the mean of its divisors is an integer number (221621545).

Almost surely, 2^443243089 is an apocalyptic number.

It is an amenable number.

443243089 is a deficient number, since it is larger than the sum of its proper divisors (1).

443243089 is an equidigital number, since it uses as much as digits as its factorization.

443243089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 443243089 is about 21053.3391413334. The cubic root of 443243089 is about 762.4546035501.

The spelling of 443243089 in words is "four hundred forty-three million, two hundred forty-three thousand, eighty-nine".