6604728 has 32 divisors (see below), whose sum is σ = 17782800. Its totient is φ = 2032128.

The previous prime is 6604727. The next prime is 6604733. The reversal of 6604728 is 8274066.

6604728 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6604727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10273 + ... + 10896.

Almost surely, 2^6604728 is an apocalyptic number.

It is an amenable number.

6604728 is an abundant number, since it is smaller than the sum of its proper divisors (11178072).

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

6604728 is a wasteful number, since it uses less digits than its factorization.

6604728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21191 (or 21187 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 6604728 is about 2569.9665367471. The cubic root of 6604728 is about 187.6225261373.

The spelling of 6604728 in words is "six million, six hundred four thousand, seven hundred twenty-eight".