6785728 has 28 divisors (see below), whose sum is σ = 13553440. Its totient is φ = 3370752.

The previous prime is 6785707. The next prime is 6785729. The reversal of 6785728 is 8275876.

It is a happy number.

6785728 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×6785728² = 92092208979968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6785729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14425 + ... + 14887.

Almost surely, 2^6785728 is an apocalyptic number.

It is an amenable number.

6785728 is a deficient number, since it is larger than the sum of its proper divisors (6767712).

6785728 is a wasteful number, since it uses less digits than its factorization.

6785728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704 (or 694 counting only the distinct ones).

The product of its digits is 188160, while the sum is 43.

The square root of 6785728 is about 2604.9429936181. The cubic root of 6785728 is about 189.3210113429.

The spelling of 6785728 in words is "six million, seven hundred eighty-five thousand, seven hundred twenty-eight".