4409569 has 2 divisors, whose sum is σ = 4409570. Its totient is φ = 4409568.

The previous prime is 4409557. The next prime is 4409609. The reversal of 4409569 is 9659044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3017169 + 1392400 = 1737^2 + 1180^2 .

It is a cyclic number.

It is not a de Polignac number, because 4409569 - 2¹⁹ = 3885281 is a prime.

It is a super-2 number, since 2×4409569² = 38888597531522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4409519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2204784 + 2204785.

It is an arithmetic number, because the mean of its divisors is an integer number (2204785).

Almost surely, 2^4409569 is an apocalyptic number.

It is an amenable number.

4409569 is a deficient number, since it is larger than the sum of its proper divisors (1).

4409569 is an equidigital number, since it uses as much as digits as its factorization.

4409569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 4409569 is about 2099.8973784450. The cubic root of 4409569 is about 163.9829572812.

The spelling of 4409569 in words is "four million, four hundred nine thousand, five hundred sixty-nine".