6656488 has 16 divisors (see below), whose sum is σ = 12622500. Its totient is φ = 3290496.

The previous prime is 6656483. The next prime is 6656497. The reversal of 6656488 is 8846566.

It can be written as a sum of positive squares in 2 ways, for example, as 6646084 + 10404 = 2578^2 + 102^2 .

It is not an unprimeable number, because it can be changed into a prime (6656483) 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, 3963 + ... + 5386.

Almost surely, 2^6656488 is an apocalyptic number.

It is an amenable number.

6656488 is a deficient number, since it is larger than the sum of its proper divisors (5966012).

6656488 is a wasteful number, since it uses less digits than its factorization.

6656488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9444 (or 9440 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

The square root of 6656488 is about 2580.0170542072. The cubic root of 6656488 is about 188.1113720661. Note that the first 3 decimals are identical.

The spelling of 6656488 in words is "six million, six hundred fifty-six thousand, four hundred eighty-eight".