4489609 has 2 divisors, whose sum is σ = 4489610. Its totient is φ = 4489608.

The previous prime is 4489591. The next prime is 4489619. The reversal of 4489609 is 9069844.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4473225 + 16384 = 2115^2 + 128^2 .

It is a cyclic number.

It is not a de Polignac number, because 4489609 - 2⁷ = 4489481 is a prime.

It is not a weakly prime, because it can be changed into another prime (4489619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2244804 + 2244805.

It is an arithmetic number, because the mean of its divisors is an integer number (2244805).

Almost surely, 2^4489609 is an apocalyptic number.

It is an amenable number.

4489609 is a deficient number, since it is larger than the sum of its proper divisors (1).

4489609 is an equidigital number, since it uses as much as digits as its factorization.

4489609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 4489609 is about 2118.8697458787. The cubic root of 4489609 is about 164.9691892271.

The spelling of 4489609 in words is "four million, four hundred eighty-nine thousand, six hundred nine".