3963903 has 4 divisors (see below), whose sum is σ = 5285208. Its totient is φ = 2642600.

The previous prime is 3963899. The next prime is 3963931. The reversal of 3963903 is 3093693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3093693 = 3 ⋅1031231.

It is a cyclic number.

It is not a de Polignac number, because 3963903 - 2² = 3963899 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3963503) 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, 660648 + ... + 660653.

It is an arithmetic number, because the mean of its divisors is an integer number (1321302).

Almost surely, 2^3963903 is an apocalyptic number.

3963903 is a deficient number, since it is larger than the sum of its proper divisors (1321305).

3963903 is a wasteful number, since it uses less digits than its factorization.

3963903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321304.

The product of its (nonzero) digits is 13122, while the sum is 33.

The square root of 3963903 is about 1990.9552983430. The cubic root of 3963903 is about 158.2611581170.

The spelling of 3963903 in words is "three million, nine hundred sixty-three thousand, nine hundred three".