728684593 has 16 divisors (see below), whose sum is σ = 898200576. Its totient is φ = 575668800.

The previous prime is 728684591. The next prime is 728684629. The reversal of 728684593 is 395486827.

It is not a de Polignac number, because 728684593 - 2¹ = 728684591 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 728684593.

It is not an unprimeable number, because it can be changed into a prime (728684591) 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, 58080 + ... + 69502.

It is an arithmetic number, because the mean of its divisors is an integer number (56137536).

Almost surely, 2^728684593 is an apocalyptic number.

It is an amenable number.

728684593 is a deficient number, since it is larger than the sum of its proper divisors (169515983).

728684593 is a wasteful number, since it uses less digits than its factorization.

728684593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12144.

The product of its digits is 2903040, while the sum is 52.

The square root of 728684593 is about 26994.1584977195. The cubic root of 728684593 is about 899.8701841569.

The spelling of 728684593 in words is "seven hundred twenty-eight million, six hundred eighty-four thousand, five hundred ninety-three".