4006039 has 2 divisors, whose sum is σ = 4006040. Its totient is φ = 4006038.

The previous prime is 4006019. The next prime is 4006063. The reversal of 4006039 is 9306004.

4006039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4006039 - 2⁵ = 4006007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4006019) 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, 2003019 + 2003020.

It is an arithmetic number, because the mean of its divisors is an integer number (2003020).

Almost surely, 2^4006039 is an apocalyptic number.

4006039 is a deficient number, since it is larger than the sum of its proper divisors (1).

4006039 is an equidigital number, since it uses as much as digits as its factorization.

4006039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 4006039 is about 2001.5091805935. The cubic root of 4006039 is about 158.8199509858.

The spelling of 4006039 in words is "four million, six thousand, thirty-nine".