6728397 has 24 divisors (see below), whose sum is σ = 10154304. Its totient is φ = 3953664.

The previous prime is 6728383. The next prime is 6728399. The reversal of 6728397 is 7938276.

It is not a de Polignac number, because 6728397 - 2¹² = 6724301 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6728399) 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 23 ways as a sum of consecutive naturals, for example, 11373 + ... + 11949.

It is an arithmetic number, because the mean of its divisors is an integer number (423096).

Almost surely, 2^6728397 is an apocalyptic number.

It is an amenable number.

6728397 is a deficient number, since it is larger than the sum of its proper divisors (3425907).

6728397 is a wasteful number, since it uses less digits than its factorization.

6728397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629 (or 616 counting only the distinct ones).

The product of its digits is 127008, while the sum is 42.

The square root of 6728397 is about 2593.9153802698. The cubic root of 6728397 is about 188.7863266485.

The spelling of 6728397 in words is "six million, seven hundred twenty-eight thousand, three hundred ninety-seven".