6843861 has 12 divisors (see below), whose sum is σ = 9984780. Its totient is φ = 4516800.

The previous prime is 6843841. The next prime is 6843869. The reversal of 6843861 is 1683486.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4796100 + 2047761 = 2190^2 + 1431^2 .

It is not a de Polignac number, because 6843861 - 2⁵ = 6843829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6843869) 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 11 ways as a sum of consecutive naturals, for example, 2856 + ... + 4673.

It is an arithmetic number, because the mean of its divisors is an integer number (832065).

Almost surely, 2^6843861 is an apocalyptic number.

It is an amenable number.

6843861 is a deficient number, since it is larger than the sum of its proper divisors (3140919).

6843861 is a wasteful number, since it uses less digits than its factorization.

6843861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7636 (or 7633 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 6843861 is about 2616.0774071116. The cubic root of 6843861 is about 189.8601094016.

The spelling of 6843861 in words is "six million, eight hundred forty-three thousand, eight hundred sixty-one".