443089 has 2 divisors, whose sum is σ = 443090. Its totient is φ = 443088.

The previous prime is 443077. The next prime is 443117. The reversal of 443089 is 980344.

443089 = T₅₄₂ + T₅₄₃ + T₅₄₄.

It is an a-pointer prime, because the next prime (443117) can be obtained adding 443089 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 409600 + 33489 = 640^2 + 183^2 .

It is a cyclic number.

It is not a de Polignac number, because 443089 - 2⁵ = 443057 is a prime.

443089 is a lucky number.

It is a plaindrome in base 13.

It is not a weakly prime, because it can be changed into another prime (443039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221544 + 221545.

It is an arithmetic number, because the mean of its divisors is an integer number (221545).

2⁴⁴³⁰⁸⁹ is an apocalyptic number.

443089 is the 544-th centered triangular number.

It is an amenable number.

443089 is a deficient number, since it is larger than the sum of its proper divisors (1).

443089 is an equidigital number, since it uses as much as digits as its factorization.

443089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 443089 is about 665.6493070679. The cubic root of 443089 is about 76.2366240086.

The spelling of 443089 in words is "four hundred forty-three thousand, eighty-nine".