3956843 has 4 divisors (see below), whose sum is σ = 4316568. Its totient is φ = 3597120.

The previous prime is 3956833. The next prime is 3956857. The reversal of 3956843 is 3486593.

3956843 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3956843 - 2⁶ = 3956779 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3956797 and 3956806.

It is not an unprimeable number, because it can be changed into a prime (3956803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179846 + ... + 179867.

It is an arithmetic number, because the mean of its divisors is an integer number (1079142).

Almost surely, 2^3956843 is an apocalyptic number.

3956843 is a deficient number, since it is larger than the sum of its proper divisors (359725).

3956843 is a wasteful number, since it uses less digits than its factorization.

3956843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359724.

The product of its digits is 77760, while the sum is 38.

The square root of 3956843 is about 1989.1814899601. The cubic root of 3956843 is about 158.1671440625.

The spelling of 3956843 in words is "three million, nine hundred fifty-six thousand, eight hundred forty-three".