6722224 has 20 divisors (see below), whose sum is σ = 13246920. Its totient is φ = 3303680.

The previous prime is 6722207. The next prime is 6722239. The reversal of 6722224 is 4222276.

6722224 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2617 + ... + 4504.

It is an arithmetic number, because the mean of its divisors is an integer number (662346).

Almost surely, 2^6722224 is an apocalyptic number.

It is an amenable number.

6722224 is a deficient number, since it is larger than the sum of its proper divisors (6524696).

6722224 is a wasteful number, since it uses less digits than its factorization.

6722224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7188 (or 7182 counting only the distinct ones).

The product of its digits is 2688, while the sum is 25.

The square root of 6722224 is about 2592.7252071903. The cubic root of 6722224 is about 188.7285746773.

The spelling of 6722224 in words is "six million, seven hundred twenty-two thousand, two hundred twenty-four".