798995591 has 2 divisors, whose sum is σ = 798995592. Its totient is φ = 798995590.

The previous prime is 798995573. The next prime is 798995609. The reversal of 798995591 is 195599897.

It is a balanced prime because it is at equal distance from previous prime (798995573) and next prime (798995609).

It is an emirp because it is prime and its reverse (195599897) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 798995591 - 2¹⁸ = 798733447 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (798995521) 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, 399497795 + 399497796.

It is an arithmetic number, because the mean of its divisors is an integer number (399497796).

Almost surely, 2^798995591 is an apocalyptic number.

798995591 is a deficient number, since it is larger than the sum of its proper divisors (1).

798995591 is an equidigital number, since it uses as much as digits as its factorization.

798995591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9185400, while the sum is 62.

The square root of 798995591 is about 28266.5100604938. The cubic root of 798995591 is about 927.9290995519.

The spelling of 798995591 in words is "seven hundred ninety-eight million, nine hundred ninety-five thousand, five hundred ninety-one".