3959963 has 16 divisors (see below), whose sum is σ = 4852224. Its totient is φ = 3154560.

The previous prime is 3959959. The next prime is 3959981. The reversal of 3959963 is 3699593.

It is a cyclic number.

It is not a de Polignac number, because 3959963 - 2² = 3959959 is a prime.

It is a super-2 number, since 2×3959963² = 31362613922738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3959953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12578 + ... + 12888.

It is an arithmetic number, because the mean of its divisors is an integer number (303264).

Almost surely, 2^3959963 is an apocalyptic number.

3959963 is a deficient number, since it is larger than the sum of its proper divisors (892261).

3959963 is a wasteful number, since it uses less digits than its factorization.

3959963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442.

The product of its digits is 196830, while the sum is 44.

The square root of 3959963 is about 1989.9655775917. The cubic root of 3959963 is about 158.2087051287.

The spelling of 3959963 in words is "three million, nine hundred fifty-nine thousand, nine hundred sixty-three".