6844509 has 12 divisors (see below), whose sum is σ = 11298976. Its totient is φ = 3911112.

The previous prime is 6844507. The next prime is 6844517. The reversal of 6844509 is 9054486.

6844509 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6844509 - 2¹ = 6844507 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6844507) 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 11 ways as a sum of consecutive naturals, for example, 54259 + ... + 54384.

Almost surely, 2^6844509 is an apocalyptic number.

It is an amenable number.

6844509 is a deficient number, since it is larger than the sum of its proper divisors (4454467).

6844509 is a wasteful number, since it uses less digits than its factorization.

6844509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108656 (or 108653 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 6844509 is about 2616.2012537265. The cubic root of 6844509 is about 189.8661014124.

The spelling of 6844509 in words is "six million, eight hundred forty-four thousand, five hundred nine".