6728343 has 4 divisors (see below), whose sum is σ = 8971128. Its totient is φ = 4485560.

The previous prime is 6728327. The next prime is 6728347. The reversal of 6728343 is 3438276.

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 6728343 - 2⁴ = 6728327 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6728347) 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, 1121388 + ... + 1121393.

It is an arithmetic number, because the mean of its divisors is an integer number (2242782).

Almost surely, 2^6728343 is an apocalyptic number.

6728343 is a deficient number, since it is larger than the sum of its proper divisors (2242785).

6728343 is a wasteful number, since it uses less digits than its factorization.

6728343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2242784.

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

The square root of 6728343 is about 2593.9049712740. The cubic root of 6728343 is about 188.7858216006.

It can be divided in two parts, 67 and 28343, that multiplied together give a palindrome (1898981).

The spelling of 6728343 in words is "six million, seven hundred twenty-eight thousand, three hundred forty-three".