606728 has 16 divisors (see below), whose sum is σ = 1147500. Its totient is φ = 300736.

The previous prime is 606721. The next prime is 606731. The reversal of 606728 is 827606.

It can be written as a sum of positive squares in 2 ways, for example, as 605284 + 1444 = 778^2 + 38^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 606728.

It is not an unprimeable number, because it can be changed into a prime (606721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 938 + ... + 1446.

2⁶⁰⁶⁷²⁸ is an apocalyptic number.

It is an amenable number.

606728 is a deficient number, since it is larger than the sum of its proper divisors (540772).

606728 is a wasteful number, since it uses less digits than its factorization.

606728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 606728 is about 778.9274677401. The cubic root of 606728 is about 84.6573518455.

The spelling of 606728 in words is "six hundred six thousand, seven hundred twenty-eight".