6688228 has 12 divisors (see below), whose sum is σ = 12320560. Its totient is φ = 3168072.

The previous prime is 6688217. The next prime is 6688267. The reversal of 6688228 is 8228866.

It is an unprimeable number.

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, 43926 + ... + 44077.

Almost surely, 2^6688228 is an apocalyptic number.

It is an amenable number.

6688228 is a deficient number, since it is larger than the sum of its proper divisors (5632332).

6688228 is a wasteful number, since it uses less digits than its factorization.

6688228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88026 (or 88024 counting only the distinct ones).

The product of its digits is 73728, while the sum is 40.

The square root of 6688228 is about 2586.1608611995. The cubic root of 6688228 is about 188.4098873437.

The spelling of 6688228 in words is "six million, six hundred eighty-eight thousand, two hundred twenty-eight".