3945603 has 8 divisors (see below), whose sum is σ = 5372928. Its totient is φ = 2574344.

The previous prime is 3945527. The next prime is 3945607. The reversal of 3945603 is 3065493.

It is a happy number.

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 3945603 - 2¹² = 3941507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3945607) 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, 13851 + ... + 14132.

It is an arithmetic number, because the mean of its divisors is an integer number (671616).

Almost surely, 2^3945603 is an apocalyptic number.

3945603 is a deficient number, since it is larger than the sum of its proper divisors (1427325).

3945603 is a wasteful number, since it uses less digits than its factorization.

3945603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28033.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 3945603 is about 1986.3541980221. The cubic root of 3945603 is about 158.0172362759.

The spelling of 3945603 in words is "three million, nine hundred forty-five thousand, six hundred three".