6722668 has 12 divisors (see below), whose sum is σ = 11907000. Its totient is φ = 3320672.

The previous prime is 6722659. The next prime is 6722669. The reversal of 6722668 is 8662276.

It is not an unprimeable number, because it can be changed into a prime (6722669) 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, 9793 + ... + 10456.

It is an arithmetic number, because the mean of its divisors is an integer number (992250).

Almost surely, 2^6722668 is an apocalyptic number.

It is an amenable number.

6722668 is a deficient number, since it is larger than the sum of its proper divisors (5184332).

6722668 is a wasteful number, since it uses less digits than its factorization.

6722668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20336 (or 20334 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 6722668 is about 2592.8108299681. The cubic root of 6722668 is about 188.7327297328.

The spelling of 6722668 in words is "six million, seven hundred twenty-two thousand, six hundred sixty-eight".