4489409 has 2 divisors, whose sum is σ = 4489410. Its totient is φ = 4489408.

The previous prime is 4489367. The next prime is 4489421. The reversal of 4489409 is 9049844.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3888784 + 600625 = 1972^2 + 775^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4489409 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4489109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2244704 + 2244705.

It is an arithmetic number, because the mean of its divisors is an integer number (2244705).

Almost surely, 2^4489409 is an apocalyptic number.

It is an amenable number.

4489409 is a deficient number, since it is larger than the sum of its proper divisors (1).

4489409 is an equidigital number, since it uses as much as digits as its factorization.

4489409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 4489409 is about 2118.8225503803. The cubic root of 4489409 is about 164.9667395462.

The spelling of 4489409 in words is "four million, four hundred eighty-nine thousand, four hundred nine".