6728875 has 8 divisors (see below), whose sum is σ = 8397792. Its totient is φ = 5383000.

The previous prime is 6728873. The next prime is 6728881. The reversal of 6728875 is 5788276.

It is a happy number.

It is not a de Polignac number, because 6728875 - 2¹ = 6728873 is a prime.

It is a Duffinian number.

6728875 is a lucky number.

It is a plaindrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (6728873) 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 7 ways as a sum of consecutive naturals, for example, 26791 + ... + 27040.

It is an arithmetic number, because the mean of its divisors is an integer number (1049724).

Almost surely, 2^6728875 is an apocalyptic number.

6728875 is a deficient number, since it is larger than the sum of its proper divisors (1668917).

6728875 is an equidigital number, since it uses as much as digits as its factorization.

6728875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53846 (or 53836 counting only the distinct ones).

The product of its digits is 188160, while the sum is 43.

The square root of 6728875 is about 2594.0075173368. The cubic root of 6728875 is about 188.7907971401.

The spelling of 6728875 in words is "six million, seven hundred twenty-eight thousand, eight hundred seventy-five".