728435801 has 2 divisors, whose sum is σ = 728435802. Its totient is φ = 728435800.

The previous prime is 728435791. The next prime is 728435821. The reversal of 728435801 is 108534827.

728435801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 708624400 + 19811401 = 26620^2 + 4451^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-728435801 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (728435821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364217900 + 364217901.

It is an arithmetic number, because the mean of its divisors is an integer number (364217901).

Almost surely, 2^728435801 is an apocalyptic number.

It is an amenable number.

728435801 is a deficient number, since it is larger than the sum of its proper divisors (1).

728435801 is an equidigital number, since it uses as much as digits as its factorization.

728435801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 728435801 is about 26989.5498480430. The cubic root of 728435801 is about 899.7677594182.

The spelling of 728435801 in words is "seven hundred twenty-eight million, four hundred thirty-five thousand, eight hundred one".