798041609 has 2 divisors, whose sum is σ = 798041610. Its totient is φ = 798041608.

The previous prime is 798041599. The next prime is 798041627. The reversal of 798041609 is 906140897.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 548496400 + 249545209 = 23420^2 + 15797^2 .

It is a cyclic number.

It is not a de Polignac number, because 798041609 - 2⁴ = 798041593 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 798041609.

It is not a weakly prime, because it can be changed into another prime (798041689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399020804 + 399020805.

It is an arithmetic number, because the mean of its divisors is an integer number (399020805).

Almost surely, 2^798041609 is an apocalyptic number.

It is an amenable number.

798041609 is a deficient number, since it is larger than the sum of its proper divisors (1).

798041609 is an equidigital number, since it uses as much as digits as its factorization.

798041609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 798041609 is about 28249.6302453678. The cubic root of 798041609 is about 927.5596439438.

The spelling of 798041609 in words is "seven hundred ninety-eight million, forty-one thousand, six hundred nine".