4259909 has 2 divisors, whose sum is σ = 4259910. Its totient is φ = 4259908.

The previous prime is 4259903. The next prime is 4259923. The reversal of 4259909 is 9099524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2512225 + 1747684 = 1585^2 + 1322^2 .

It is a cyclic number.

It is not a de Polignac number, because 4259909 - 2⁸ = 4259653 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4259903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2129954 + 2129955.

It is an arithmetic number, because the mean of its divisors is an integer number (2129955).

Almost surely, 2^4259909 is an apocalyptic number.

It is an amenable number.

4259909 is a deficient number, since it is larger than the sum of its proper divisors (1).

4259909 is an equidigital number, since it uses as much as digits as its factorization.

4259909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 4259909 is about 2063.9546991153. The cubic root of 4259909 is about 162.1063798569.

The spelling of 4259909 in words is "four million, two hundred fifty-nine thousand, nine hundred nine".