4445839 has 2 divisors, whose sum is σ = 4445840. Its totient is φ = 4445838.

The previous prime is 4445821. The next prime is 4445849. The reversal of 4445839 is 9385444.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4445839 - 2⁷ = 4445711 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 4445798 and 4445807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4445849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2222919 + 2222920.

It is an arithmetic number, because the mean of its divisors is an integer number (2222920).

Almost surely, 2^4445839 is an apocalyptic number.

4445839 is a deficient number, since it is larger than the sum of its proper divisors (1).

4445839 is an equidigital number, since it uses as much as digits as its factorization.

4445839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 37.

The square root of 4445839 is about 2108.5158287288. The cubic root of 4445839 is about 164.4313328392.

The spelling of 4445839 in words is "four million, four hundred forty-five thousand, eight hundred thirty-nine".