3901603 has 4 divisors (see below), whose sum is σ = 3905928. Its totient is φ = 3897280.

The previous prime is 3901589. The next prime is 3901609. The reversal of 3901603 is 3061093.

3901603 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3901603 - 2⁵ = 3901571 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

3901603 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3901609) 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 3 ways as a sum of consecutive naturals, for example, 238 + ... + 2803.

It is an arithmetic number, because the mean of its divisors is an integer number (976482).

Almost surely, 2^3901603 is an apocalyptic number.

3901603 is a deficient number, since it is larger than the sum of its proper divisors (4325).

3901603 is a wasteful number, since it uses less digits than its factorization.

3901603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4324.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 3901603 is about 1975.2475794188. The cubic root of 3901603 is about 157.4276546890.

Adding to 3901603 its reverse (3061093), we get a palindrome (6962696).

The spelling of 3901603 in words is "three million, nine hundred one thousand, six hundred three".