728396 has 6 divisors (see below), whose sum is σ = 1274700. Its totient is φ = 364196.

The previous prime is 728383. The next prime is 728417. The reversal of 728396 is 693827.

728396 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91046 + ... + 91053.

It is an arithmetic number, because the mean of its divisors is an integer number (212450).

2⁷²⁸³⁹⁶ is an apocalyptic number.

It is an amenable number.

728396 is a deficient number, since it is larger than the sum of its proper divisors (546304).

728396 is a wasteful number, since it uses less digits than its factorization.

728396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182103 (or 182101 counting only the distinct ones).

The product of its digits is 18144, while the sum is 35.

The square root of 728396 is about 853.4611883384. The cubic root of 728396 is about 89.9751371651.

The spelling of 728396 in words is "seven hundred twenty-eight thousand, three hundred ninety-six".