6844643 has 4 divisors (see below), whose sum is σ = 7371168. Its totient is φ = 6318120.

The previous prime is 6844637. The next prime is 6844687. The reversal of 6844643 is 3464486.

It is a happy number.

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 6844643 - 2¹⁴ = 6828259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6844603) 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, 263243 + ... + 263268.

It is an arithmetic number, because the mean of its divisors is an integer number (1842792).

Almost surely, 2^6844643 is an apocalyptic number.

6844643 is a deficient number, since it is larger than the sum of its proper divisors (526525).

6844643 is a wasteful number, since it uses less digits than its factorization.

6844643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526524.

The product of its digits is 55296, while the sum is 35.

The square root of 6844643 is about 2616.2268632517. The cubic root of 6844643 is about 189.8673404539.

The spelling of 6844643 in words is "six million, eight hundred forty-four thousand, six hundred forty-three".