3866843 has 4 divisors (see below), whose sum is σ = 3876888. Its totient is φ = 3856800.

The previous prime is 3866839. The next prime is 3866857. The reversal of 3866843 is 3486683.

3866843 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 3866843 - 2² = 3866839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3866797 and 3866806.

It is not an unprimeable number, because it can be changed into a prime (3866143) 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, 4421 + ... + 5222.

It is an arithmetic number, because the mean of its divisors is an integer number (969222).

Almost surely, 2^3866843 is an apocalyptic number.

3866843 is a deficient number, since it is larger than the sum of its proper divisors (10045).

3866843 is an equidigital number, since it uses as much as digits as its factorization.

3866843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10044.

The product of its digits is 82944, while the sum is 38.

The square root of 3866843 is about 1966.4289969384. The cubic root of 3866843 is about 156.9587434024.

The spelling of 3866843 in words is "three million, eight hundred sixty-six thousand, eight hundred forty-three".