6647488 has 14 divisors (see below), whose sum is σ = 13191236. Its totient is φ = 3323712.

The previous prime is 6647447. The next prime is 6647489. The reversal of 6647488 is 8847466.

It is not an unprimeable number, because it can be changed into a prime (6647489) 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 as a sum of consecutive naturals, namely, 51870 + ... + 51997.

Almost surely, 2^6647488 is an apocalyptic number.

It is an amenable number.

6647488 is a deficient number, since it is larger than the sum of its proper divisors (6543748).

6647488 is a wasteful number, since it uses less digits than its factorization.

6647488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103879 (or 103869 counting only the distinct ones).

The product of its digits is 258048, while the sum is 43.

The square root of 6647488 is about 2578.2722897320. The cubic root of 6647488 is about 188.0265542694.

The spelling of 6647488 in words is "six million, six hundred forty-seven thousand, four hundred eighty-eight".