6728413 has 16 divisors (see below), whose sum is σ = 7715520. Its totient is φ = 5826816.

The previous prime is 6728401. The next prime is 6728437. The reversal of 6728413 is 3148276.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6728413 is a prime.

It is a plaindrome in base 7 and base 16.

It is a zygodrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6728713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11670 + ... + 12232.

It is an arithmetic number, because the mean of its divisors is an integer number (482220).

Almost surely, 2^6728413 is an apocalyptic number.

It is an amenable number.

6728413 is a deficient number, since it is larger than the sum of its proper divisors (987107).

6728413 is a wasteful number, since it uses less digits than its factorization.

6728413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636.

The product of its digits is 8064, while the sum is 31.

The square root of 6728413 is about 2593.9184644086. The cubic root of 6728413 is about 188.7864762918.

The spelling of 6728413 in words is "six million, seven hundred twenty-eight thousand, four hundred thirteen".