728183 has 4 divisors (see below), whose sum is σ = 731160. Its totient is φ = 725208.

The previous prime is 728173. The next prime is 728191. The reversal of 728183 is 381827.

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

It is a cyclic number.

It is not a de Polignac number, because 728183 - 2¹⁰ = 727159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728113) 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, 1085 + ... + 1622.

It is an arithmetic number, because the mean of its divisors is an integer number (182790).

2⁷²⁸¹⁸³ is an apocalyptic number.

728183 is a deficient number, since it is larger than the sum of its proper divisors (2977).

728183 is a wasteful number, since it uses less digits than its factorization.

728183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2976.

The product of its digits is 2688, while the sum is 29.

The square root of 728183 is about 853.3363932237. The cubic root of 728183 is about 89.9663660330.

The spelling of 728183 in words is "seven hundred twenty-eight thousand, one hundred eighty-three".