798598391 has 2 divisors, whose sum is σ = 798598392. Its totient is φ = 798598390.

The previous prime is 798598379. The next prime is 798598421. The reversal of 798598391 is 193895897.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 798598391 - 2⁶ = 798598327 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 798598391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (798598301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399299195 + 399299196.

It is an arithmetic number, because the mean of its divisors is an integer number (399299196).

Almost surely, 2^798598391 is an apocalyptic number.

798598391 is a deficient number, since it is larger than the sum of its proper divisors (1).

798598391 is an equidigital number, since it uses as much as digits as its factorization.

798598391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4898880, while the sum is 59.

The square root of 798598391 is about 28259.4832047580. The cubic root of 798598391 is about 927.7753087447.

The spelling of 798598391 in words is "seven hundred ninety-eight million, five hundred ninety-eight thousand, three hundred ninety-one".