6728886 has 24 divisors (see below), whose sum is σ = 14995560. Its totient is φ = 2236608.

The previous prime is 6728881. The next prime is 6728947. The reversal of 6728886 is 6888276.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6728881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18886 + ... + 19238.

It is an arithmetic number, because the mean of its divisors is an integer number (624815).

Almost surely, 2^6728886 is an apocalyptic number.

6728886 is an abundant number, since it is smaller than the sum of its proper divisors (8266674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6728886 is an equidigital number, since it uses as much as digits as its factorization.

6728886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717 (or 358 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 6728886 is about 2594.0096376074. The cubic root of 6728886 is about 188.7909000150.

The spelling of 6728886 in words is "six million, seven hundred twenty-eight thousand, eight hundred eighty-six".