728833 has 4 divisors (see below), whose sum is σ = 832960. Its totient is φ = 624708.

The previous prime is 728831. The next prime is 728837. The reversal of 728833 is 338827.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 728833 - 2¹ = 728831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 728795 and 728804.

It is not an unprimeable number, because it can be changed into a prime (728831) 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, 52053 + ... + 52066.

It is an arithmetic number, because the mean of its divisors is an integer number (208240).

2⁷²⁸⁸³³ is an apocalyptic number.

It is an amenable number.

728833 is a deficient number, since it is larger than the sum of its proper divisors (104127).

728833 is a wasteful number, since it uses less digits than its factorization.

728833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104126.

The product of its digits is 8064, while the sum is 31.

The square root of 728833 is about 853.7171662793. The cubic root of 728833 is about 89.9931270472.

The spelling of 728833 in words is "seven hundred twenty-eight thousand, eight hundred thirty-three".