4399289 has 2 divisors, whose sum is σ = 4399290. Its totient is φ = 4399288.

The previous prime is 4399237. The next prime is 4399301. The reversal of 4399289 is 9829934.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4141225 + 258064 = 2035^2 + 508^2 .

It is a cyclic number.

It is not a de Polignac number, because 4399289 - 2¹⁶ = 4333753 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4399789) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2199644 + 2199645.

It is an arithmetic number, because the mean of its divisors is an integer number (2199645).

Almost surely, 2^4399289 is an apocalyptic number.

It is an amenable number.

4399289 is a deficient number, since it is larger than the sum of its proper divisors (1).

4399289 is an equidigital number, since it uses as much as digits as its factorization.

4399289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 44.

The square root of 4399289 is about 2097.4482115180. The cubic root of 4399289 is about 163.8554273201.

The spelling of 4399289 in words is "four million, three hundred ninety-nine thousand, two hundred eighty-nine".