4066706 has 24 divisors (see below), whose sum is σ = 7516476. Its totient is φ = 1639680.

The previous prime is 4066691. The next prime is 4066709. The reversal of 4066706 is 6076604.

4066706 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4036081 + 30625 = 2009^2 + 175^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4066709) 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 11 ways as a sum of consecutive naturals, for example, 446 + ... + 2886.

Almost surely, 2^4066706 is an apocalyptic number.

4066706 is a deficient number, since it is larger than the sum of its proper divisors (3449770).

4066706 is a wasteful number, since it uses less digits than its factorization.

4066706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474 (or 2467 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 4066706 is about 2016.6075473428. The cubic root of 4066706 is about 159.6176547619.

The spelling of 4066706 in words is "four million, sixty-six thousand, seven hundred six".