3963963 has 8 divisors (see below), whose sum is σ = 5372176. Its totient is φ = 2599200.

The previous prime is 3963959. The next prime is 3963977. The reversal of 3963963 is 3693693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3963963 - 2² = 3963959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3963263) 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, 10648 + ... + 11013.

It is an arithmetic number, because the mean of its divisors is an integer number (671522).

Almost surely, 2^3963963 is an apocalyptic number.

3963963 is a deficient number, since it is larger than the sum of its proper divisors (1408213).

3963963 is a wasteful number, since it uses less digits than its factorization.

3963963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21725.

The product of its digits is 78732, while the sum is 39.

The square root of 3963963 is about 1990.9703664294. The cubic root of 3963963 is about 158.2619566247.

It can be divided in two parts, 3 and 963963, that added together give a triangular number (963966 = T₁₃₈₈).

The spelling of 3963963 in words is "three million, nine hundred sixty-three thousand, nine hundred sixty-three".