728201 has 4 divisors (see below), whose sum is σ = 746004. Its totient is φ = 710400.

The previous prime is 728191. The next prime is 728207. The reversal of 728201 is 102827.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 126025 + 602176 = 355^2 + 776^2 .

It is a cyclic number.

It is not a de Polignac number, because 728201 - 2¹⁴ = 711817 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 728201.

It is not an unprimeable number, because it can be changed into a prime (728207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8840 + ... + 8921.

It is an arithmetic number, because the mean of its divisors is an integer number (186501).

2⁷²⁸²⁰¹ is an apocalyptic number.

It is an amenable number.

728201 is a deficient number, since it is larger than the sum of its proper divisors (17803).

728201 is a wasteful number, since it uses less digits than its factorization.

728201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17802.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 728201 is about 853.3469399957. The cubic root of 728201 is about 89.9671073216.

It can be divided in two parts, 728 and 201, that added together give a palindrome (929).

The spelling of 728201 in words is "seven hundred twenty-eight thousand, two hundred one".