444287489 has 2 divisors, whose sum is σ = 444287490. Its totient is φ = 444287488.

The previous prime is 444287483. The next prime is 444287533. The reversal of 444287489 is 984782444.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 383572225 + 60715264 = 19585^2 + 7792^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-444287489 is a prime.

It is a super-3 number, since 3×444287489³ (a number of 27 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (444287483) 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, 222143744 + 222143745.

It is an arithmetic number, because the mean of its divisors is an integer number (222143745).

Almost surely, 2^444287489 is an apocalyptic number.

It is an amenable number.

444287489 is a deficient number, since it is larger than the sum of its proper divisors (1).

444287489 is an equidigital number, since it uses as much as digits as its factorization.

444287489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2064384, while the sum is 50.

The square root of 444287489 is about 21078.1282138619. The cubic root of 444287489 is about 763.0529832254.

The spelling of 444287489 in words is "four hundred forty-four million, two hundred eighty-seven thousand, four hundred eighty-nine".