728860 has 24 divisors (see below), whose sum is σ = 1670256. Its totient is φ = 264960.

The previous prime is 728851. The next prime is 728867. The reversal of 728860 is 68827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1437 + ... + 1876.

It is an arithmetic number, because the mean of its divisors is an integer number (69594).

2⁷²⁸⁸⁶⁰ is an apocalyptic number.

It is an amenable number.

728860 is an abundant number, since it is smaller than the sum of its proper divisors (941396).

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

728860 is a wasteful number, since it uses less digits than its factorization.

728860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333 (or 3331 counting only the distinct ones).

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

The square root of 728860 is about 853.7329793325. The cubic root of 728860 is about 89.9942383143.

The spelling of 728860 in words is "seven hundred twenty-eight thousand, eight hundred sixty".