728334017 has 2 divisors, whose sum is σ = 728334018. Its totient is φ = 728334016.

The previous prime is 728333999. The next prime is 728334071. The reversal of 728334017 is 710433827.

Together with next prime (728334071) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 701667121 + 26666896 = 26489^2 + 5164^2 .

It is a cyclic number.

It is not a de Polignac number, because 728334017 - 2²⁰ = 727285441 is a prime.

It is not a weakly prime, because it can be changed into another prime (728334317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364167008 + 364167009.

It is an arithmetic number, because the mean of its divisors is an integer number (364167009).

Almost surely, 2^728334017 is an apocalyptic number.

It is an amenable number.

728334017 is a deficient number, since it is larger than the sum of its proper divisors (1).

728334017 is an equidigital number, since it uses as much as digits as its factorization.

728334017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 728334017 is about 26987.6641634655. The cubic root of 728334017 is about 899.7258494208.

The spelling of 728334017 in words is "seven hundred twenty-eight million, three hundred thirty-four thousand, seventeen".