4028839 has 2 divisors, whose sum is σ = 4028840. Its totient is φ = 4028838.

The previous prime is 4028833. The next prime is 4028851. The reversal of 4028839 is 9388204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4028839 - 2⁵ = 4028807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4028833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2014419 + 2014420.

It is an arithmetic number, because the mean of its divisors is an integer number (2014420).

Almost surely, 2^4028839 is an apocalyptic number.

4028839 is a deficient number, since it is larger than the sum of its proper divisors (1).

4028839 is an equidigital number, since it uses as much as digits as its factorization.

4028839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 4028839 is about 2007.1968015120. The cubic root of 4028839 is about 159.1206841883.

The spelling of 4028839 in words is "four million, twenty-eight thousand, eight hundred thirty-nine".