4066003 has 4 divisors (see below), whose sum is σ = 4206240. Its totient is φ = 3925768.

The previous prime is 4065989. The next prime is 4066021. The reversal of 4066003 is 3006604.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4066003 - 2⁹ = 4065491 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 (4066033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70075 + ... + 70132.

It is an arithmetic number, because the mean of its divisors is an integer number (1051560).

Almost surely, 2^4066003 is an apocalyptic number.

4066003 is a deficient number, since it is larger than the sum of its proper divisors (140237).

4066003 is a wasteful number, since it uses less digits than its factorization.

4066003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140236.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 4066003 is about 2016.4332371790. The cubic root of 4066003 is about 159.6084566805.

The spelling of 4066003 in words is "four million, sixty-six thousand, three".