2659439 has 2 divisors, whose sum is σ = 2659440. Its totient is φ = 2659438.

The previous prime is 2659399. The next prime is 2659441. The reversal of 2659439 is 9349562.

2659439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2659439 - 2¹² = 2655343 is a prime.

Together with 2659441, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2659469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1329719 + 1329720.

It is an arithmetic number, because the mean of its divisors is an integer number (1329720).

2^2659439 is an apocalyptic number.

2659439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2659439 is an equidigital number, since it uses as much as digits as its factorization.

2659439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 38.

The square root of 2659439 is about 1630.7786483763. The cubic root of 2659439 is about 138.5468569057.

The spelling of 2659439 in words is "two million, six hundred fifty-nine thousand, four hundred thirty-nine".