3956863 has 2 divisors, whose sum is σ = 3956864. Its totient is φ = 3956862.

The previous prime is 3956857. The next prime is 3956867. The reversal of 3956863 is 3686593.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3956863 - 2⁵ = 3956831 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3956867) 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 as a sum of consecutive naturals, namely, 1978431 + 1978432.

It is an arithmetic number, because the mean of its divisors is an integer number (1978432).

Almost surely, 2^3956863 is an apocalyptic number.

3956863 is a deficient number, since it is larger than the sum of its proper divisors (1).

3956863 is an equidigital number, since it uses as much as digits as its factorization.

3956863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 40.

The square root of 3956863 is about 1989.1865171471. The cubic root of 3956863 is about 158.1674105491.

The spelling of 3956863 in words is "three million, nine hundred fifty-six thousand, eight hundred sixty-three".