4066839 has 12 divisors (see below), whose sum is σ = 6713616. Its totient is φ = 2323872.

The previous prime is 4066823. The next prime is 4066847. The reversal of 4066839 is 9386604.

It is not a de Polignac number, because 4066839 - 2⁴ = 4066823 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4066879) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32214 + ... + 32339.

It is an arithmetic number, because the mean of its divisors is an integer number (559468).

Almost surely, 2^4066839 is an apocalyptic number.

4066839 is a deficient number, since it is larger than the sum of its proper divisors (2646777).

4066839 is a wasteful number, since it uses less digits than its factorization.

4066839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64566 (or 64563 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 4066839 is about 2016.6405232465. The cubic root of 4066839 is about 159.6193948202.

The spelling of 4066839 in words is "four million, sixty-six thousand, eight hundred thirty-nine".