683500728 has 64 divisors (see below), whose sum is σ = 1727510400. Its totient is φ = 225348480.

The previous prime is 683500721. The next prime is 683500771. The reversal of 683500728 is 827005386.

683500728 is digitally balanced in base 2, 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 (683500721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1482418 + ... + 1482878.

It is an arithmetic number, because the mean of its divisors is an integer number (26992350).

Almost surely, 2^683500728 is an apocalyptic number.

It is an amenable number.

683500728 is an abundant number, since it is smaller than the sum of its proper divisors (1044009672).

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

683500728 is a wasteful number, since it uses less digits than its factorization.

683500728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012 (or 1008 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 683500728 is about 26143.8468477766. The cubic root of 683500728 is about 880.8723821292.

The spelling of 683500728 in words is "six hundred eighty-three million, five hundred thousand, seven hundred twenty-eight".