728575 has 12 divisors (see below), whose sum is σ = 914128. Its totient is φ = 576000.

The previous prime is 728573. The next prime is 728579. The reversal of 728575 is 575827.

It is not a de Polignac number, because 728575 - 2¹ = 728573 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 728575.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728573) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3679 + ... + 3871.

2⁷²⁸⁵⁷⁵ is an apocalyptic number.

728575 is a deficient number, since it is larger than the sum of its proper divisors (185553).

728575 is a wasteful number, since it uses less digits than its factorization.

728575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354 (or 349 counting only the distinct ones).

The product of its digits is 19600, while the sum is 34.

The square root of 728575 is about 853.5660489968. The cubic root of 728575 is about 89.9825068882.

It can be divided in two parts, 7 and 28575, that added together give a palindrome (28582).

The spelling of 728575 in words is "seven hundred twenty-eight thousand, five hundred seventy-five".