4066009 has 8 divisors (see below), whose sum is σ = 4492800. Its totient is φ = 3660096.

The previous prime is 4065989. The next prime is 4066021. The reversal of 4066009 is 9006604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4066009 - 2¹⁵ = 4033241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4066039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4809 + ... + 5590.

It is an arithmetic number, because the mean of its divisors is an integer number (561600).

Almost surely, 2^4066009 is an apocalyptic number.

It is an amenable number.

4066009 is a deficient number, since it is larger than the sum of its proper divisors (426791).

4066009 is a wasteful number, since it uses less digits than its factorization.

4066009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10439.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 4066009 is about 2016.4347249539. The cubic root of 4066009 is about 159.6085351893.

It can be divided in two parts, 40 and 66009, that added together give a square (66049 = 257²).

The spelling of 4066009 in words is "four million, sixty-six thousand, nine".