4441009 has 2 divisors, whose sum is σ = 4441010. Its totient is φ = 4441008.

The previous prime is 4441007. The next prime is 4441033. The reversal of 4441009 is 9001444.

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., 4389025 + 51984 = 2095^2 + 228^2 .

It is a cyclic number.

It is not a de Polignac number, because 4441009 - 2¹ = 4441007 is a prime.

Together with 4441007, it forms a pair of twin primes.

4441009 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (4441007) 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, 2220504 + 2220505.

It is an arithmetic number, because the mean of its divisors is an integer number (2220505).

Almost surely, 2^4441009 is an apocalyptic number.

It is an amenable number.

4441009 is a deficient number, since it is larger than the sum of its proper divisors (1).

4441009 is an equidigital number, since it uses as much as digits as its factorization.

4441009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 4441009 is about 2107.3701620740. The cubic root of 4441009 is about 164.3717646961.

The spelling of 4441009 in words is "four million, four hundred forty-one thousand, nine".