4065939 has 6 divisors (see below), whose sum is σ = 5873036. Its totient is φ = 2710620.

The previous prime is 4065937. The next prime is 4065947. The reversal of 4065939 is 9395604.

4065939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4065939 - 2¹ = 4065937 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4065937) 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 in 5 ways as a sum of consecutive naturals, for example, 225877 + ... + 225894.

Almost surely, 2^4065939 is an apocalyptic number.

4065939 is a deficient number, since it is larger than the sum of its proper divisors (1807097).

4065939 is a wasteful number, since it uses less digits than its factorization.

4065939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451777 (or 451774 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 4065939 is about 2016.4173675110. The cubic root of 4065939 is about 159.6076192492.

The spelling of 4065939 in words is "four million, sixty-five thousand, nine hundred thirty-nine".