6844649 has 8 divisors (see below), whose sum is σ = 7955520. Its totient is φ = 5767056.

The previous prime is 6844637. The next prime is 6844687. The reversal of 6844649 is 9464486.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6844649 - 2⁴ = 6844633 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6844249) 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 7 ways as a sum of consecutive naturals, for example, 7874 + ... + 8699.

It is an arithmetic number, because the mean of its divisors is an integer number (994440).

Almost surely, 2^6844649 is an apocalyptic number.

It is an amenable number.

6844649 is a deficient number, since it is larger than the sum of its proper divisors (1110871).

6844649 is a wasteful number, since it uses less digits than its factorization.

6844649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16639.

The product of its digits is 165888, while the sum is 41.

The square root of 6844649 is about 2616.2280099410. The cubic root of 6844649 is about 189.8673959330.

The spelling of 6844649 in words is "six million, eight hundred forty-four thousand, six hundred forty-nine".