728079 has 8 divisors (see below), whose sum is σ = 1059072. Its totient is φ = 441240.

The previous prime is 728069. The next prime is 728087. The reversal of 728079 is 970827.

728079 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 728079 - 2⁵ = 728047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 22063 = 728079 / (7 + 2 + 8 + 0 + 7 + 9).

728079 is a lucky 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 7 ways as a sum of consecutive naturals, for example, 10999 + ... + 11064.

It is an arithmetic number, because the mean of its divisors is an integer number (132384).

2⁷²⁸⁰⁷⁹ is an apocalyptic number.

728079 is a deficient number, since it is larger than the sum of its proper divisors (330993).

728079 is a wasteful number, since it uses less digits than its factorization.

728079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22077.

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 728079 is about 853.2754537663. The cubic root of 728079 is about 89.9620827931.

The spelling of 728079 in words is "seven hundred twenty-eight thousand, seventy-nine".