6726656 has 22 divisors (see below), whose sum is σ = 13448790. Its totient is φ = 3362816.

The previous prime is 6726647. The next prime is 6726667. The reversal of 6726656 is 6566276.

It can be written as a sum of positive squares in only one way, i.e., 6553600 + 173056 = 2560^2 + 416^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2261 + ... + 4308.

Almost surely, 2^6726656 is an apocalyptic number.

It is an amenable number.

6726656 is a deficient number, since it is larger than the sum of its proper divisors (6722134).

6726656 is an equidigital number, since it uses as much as digits as its factorization.

6726656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6589 (or 6571 counting only the distinct ones).

The product of its digits is 90720, while the sum is 38.

The square root of 6726656 is about 2593.5797654979. The cubic root of 6726656 is about 188.7700421681.

The spelling of 6726656 in words is "six million, seven hundred twenty-six thousand, six hundred fifty-six".