2585839 has 2 divisors, whose sum is σ = 2585840. Its totient is φ = 2585838.

The previous prime is 2585837. The next prime is 2585899. The reversal of 2585839 is 9385852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2585839 - 2¹ = 2585837 is a prime.

Together with 2585837, 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 (2585833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1292919 + 1292920.

It is an arithmetic number, because the mean of its divisors is an integer number (1292920).

2^2585839 is an apocalyptic number.

2585839 is a deficient number, since it is larger than the sum of its proper divisors (1).

2585839 is an equidigital number, since it uses as much as digits as its factorization.

2585839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 40.

The square root of 2585839 is about 1608.0544145022. The cubic root of 2585839 is about 137.2567865806.

The spelling of 2585839 in words is "two million, five hundred eighty-five thousand, eight hundred thirty-nine".