798520729 has 2 divisors, whose sum is σ = 798520730. Its totient is φ = 798520728.

The previous prime is 798520711. The next prime is 798520757. The reversal of 798520729 is 927025897.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 790903129 + 7617600 = 28123^2 + 2760^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-798520729 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (798524729) 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, 399260364 + 399260365.

It is an arithmetic number, because the mean of its divisors is an integer number (399260365).

Almost surely, 2^798520729 is an apocalyptic number.

It is an amenable number.

798520729 is a deficient number, since it is larger than the sum of its proper divisors (1).

798520729 is an equidigital number, since it uses as much as digits as its factorization.

798520729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 635040, while the sum is 49.

The square root of 798520729 is about 28258.1090839426. The cubic root of 798520729 is about 927.7452330426.

The spelling of 798520729 in words is "seven hundred ninety-eight million, five hundred twenty thousand, seven hundred twenty-nine".