6649841 has 8 divisors (see below), whose sum is σ = 7488768. Its totient is φ = 5850000.

The previous prime is 6649837. The next prime is 6649849. The reversal of 6649841 is 1489466.

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 6649841 - 2² = 6649837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6649795 and 6649804.

It is not an unprimeable number, because it can be changed into a prime (6649849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9410 + ... + 10091.

It is an arithmetic number, because the mean of its divisors is an integer number (936096).

Almost surely, 2^6649841 is an apocalyptic number.

It is an amenable number.

6649841 is a deficient number, since it is larger than the sum of its proper divisors (838927).

6649841 is a wasteful number, since it uses less digits than its factorization.

6649841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19543.

The product of its digits is 41472, while the sum is 38.

The square root of 6649841 is about 2578.7285626836. The cubic root of 6649841 is about 188.0487367986.

The spelling of 6649841 in words is "six million, six hundred forty-nine thousand, eight hundred forty-one".