728579 has 2 divisors, whose sum is σ = 728580. Its totient is φ = 728578.

The previous prime is 728573. The next prime is 728627. The reversal of 728579 is 975827.

It is a weak prime.

It is an emirp because it is prime and its reverse (975827) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-728579 is a prime.

It is not a weakly prime, because it can be changed into another prime (728573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364289 + 364290.

It is an arithmetic number, because the mean of its divisors is an integer number (364290).

2⁷²⁸⁵⁷⁹ is an apocalyptic number.

728579 is a deficient number, since it is larger than the sum of its proper divisors (1).

728579 is an equidigital number, since it uses as much as digits as its factorization.

728579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 38.

The square root of 728579 is about 853.5683921046. The cubic root of 728579 is about 89.9826715609.

The spelling of 728579 in words is "seven hundred twenty-eight thousand, five hundred seventy-nine".