3945003 has 16 divisors (see below), whose sum is σ = 5630976. Its totient is φ = 2448000.

The previous prime is 3944999. The next prime is 3945013. The reversal of 3945003 is 3005493.

3945003 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 3945003 - 2² = 3944999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3945013) 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 15 ways as a sum of consecutive naturals, for example, 4878 + ... + 5628.

It is an arithmetic number, because the mean of its divisors is an integer number (351936).

Almost surely, 2^3945003 is an apocalyptic number.

3945003 is a deficient number, since it is larger than the sum of its proper divisors (1685973).

3945003 is a wasteful number, since it uses less digits than its factorization.

3945003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 3945003 is about 1986.2031618140. The cubic root of 3945003 is about 158.0092260809.

The spelling of 3945003 in words is "three million, nine hundred forty-five thousand, three".