6610728 has 16 divisors (see below), whose sum is σ = 16526880. Its totient is φ = 2203568.

The previous prime is 6610711. The next prime is 6610733. The reversal of 6610728 is 8270166.

It is a happy number.

6610728 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 6610695 and 6610704.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137700 + ... + 137747.

It is an arithmetic number, because the mean of its divisors is an integer number (1032930).

Almost surely, 2^6610728 is an apocalyptic number.

It is an amenable number.

6610728 is an abundant number, since it is smaller than the sum of its proper divisors (9916152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6610728 is a wasteful number, since it uses less digits than its factorization.

6610728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275456 (or 275452 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 6610728 is about 2571.1336021296. The cubic root of 6610728 is about 187.6793235528.

The spelling of 6610728 in words is "six million, six hundred ten thousand, seven hundred twenty-eight".