6728433 has 4 divisors (see below), whose sum is σ = 8971248. Its totient is φ = 4485620.

The previous prime is 6728401. The next prime is 6728437. The reversal of 6728433 is 3348276.

6728433 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6728433 - 2⁵ = 6728401 is a prime.

It is a d-powerful number, because it can be written as 6² + 7⁸ + 2¹⁹ + 8 + 4⁹ + 3² + 3¹¹ .

It is a D-number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6728394 and 6728403.

It is not an unprimeable number, because it can be changed into a prime (6728437) 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 3 ways as a sum of consecutive naturals, for example, 1121403 + ... + 1121408.

It is an arithmetic number, because the mean of its divisors is an integer number (2242812).

Almost surely, 2^6728433 is an apocalyptic number.

It is an amenable number.

6728433 is a deficient number, since it is larger than the sum of its proper divisors (2242815).

6728433 is a wasteful number, since it uses less digits than its factorization.

6728433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2242814.

The product of its digits is 24192, while the sum is 33.

The square root of 6728433 is about 2593.9223195771. The cubic root of 6728433 is about 188.7866633456.

The spelling of 6728433 in words is "six million, seven hundred twenty-eight thousand, four hundred thirty-three".