728273 has 16 divisors (see below), whose sum is σ = 919296. Its totient is φ = 561600.

The previous prime is 728269. The next prime is 728281. The reversal of 728273 is 372827.

728273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 728273 - 2² = 728269 is a prime.

Its product of digits (4704) is a multiple of the sum of its prime divisors (224).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (728293) 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, 4748 + ... + 4898.

It is an arithmetic number, because the mean of its divisors is an integer number (57456).

2⁷²⁸²⁷³ is an apocalyptic number.

It is an amenable number.

728273 is a deficient number, since it is larger than the sum of its proper divisors (191023).

728273 is a wasteful number, since it uses less digits than its factorization.

728273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224.

The product of its digits is 4704, while the sum is 29.

The square root of 728273 is about 853.3891257803. The cubic root of 728273 is about 89.9700723538.

It can be divided in two parts, 728 and 273, that added together give a palindrome (1001).

The spelling of 728273 in words is "seven hundred twenty-eight thousand, two hundred seventy-three".