6728227 has 4 divisors (see below), whose sum is σ = 7339896. Its totient is φ = 6116560.

The previous prime is 6728221. The next prime is 6728231. The reversal of 6728227 is 7228276.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6728227 - 2¹¹ = 6726179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6728192 and 6728201.

It is not an unprimeable number, because it can be changed into a prime (6728221) 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, 305818 + ... + 305839.

It is an arithmetic number, because the mean of its divisors is an integer number (1834974).

Almost surely, 2^6728227 is an apocalyptic number.

6728227 is a deficient number, since it is larger than the sum of its proper divisors (611669).

6728227 is a wasteful number, since it uses less digits than its factorization.

6728227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611668.

The product of its digits is 18816, while the sum is 34.

The square root of 6728227 is about 2593.8826110678. The cubic root of 6728227 is about 188.7847366737.

The spelling of 6728227 in words is "six million, seven hundred twenty-eight thousand, two hundred twenty-seven".