728068 has 12 divisors (see below), whose sum is σ = 1390032. Its totient is φ = 330920.

The previous prime is 728047. The next prime is 728069. The reversal of 728068 is 860827.

It is not an unprimeable number, because it can be changed into a prime (728069) by changing a digit.

728068 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8230 + ... + 8317.

It is an arithmetic number, because the mean of its divisors is an integer number (115836).

2⁷²⁸⁰⁶⁸ is an apocalyptic number.

It is an amenable number.

728068 is a deficient number, since it is larger than the sum of its proper divisors (661964).

728068 is a wasteful number, since it uses less digits than its factorization.

728068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16562 (or 16560 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 728068 is about 853.2690079922. The cubic root of 728068 is about 89.9616297342.

The spelling of 728068 in words is "seven hundred twenty-eight thousand, sixty-eight".