728063 has 4 divisors (see below), whose sum is σ = 832080. Its totient is φ = 624048.

The previous prime is 728047. The next prime is 728069. The reversal of 728063 is 360827.

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 728063 - 2⁴ = 728047 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 (728069) 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, 51998 + ... + 52011.

It is an arithmetic number, because the mean of its divisors is an integer number (208020).

2⁷²⁸⁰⁶³ is an apocalyptic number.

728063 is a deficient number, since it is larger than the sum of its proper divisors (104017).

728063 is a wasteful number, since it uses less digits than its factorization.

728063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104016.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 728063 is about 853.2660780788. The cubic root of 728063 is about 89.9614237969.

Subtracting from 728063 its reverse (360827), we obtain a square (367236 = 606²).

The spelling of 728063 in words is "seven hundred twenty-eight thousand, sixty-three".