798342569 has 2 divisors, whose sum is σ = 798342570. Its totient is φ = 798342568.

The previous prime is 798342547. The next prime is 798342583. The reversal of 798342569 is 965243897.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 735060544 + 63282025 = 27112^2 + 7955^2 .

It is a cyclic number.

It is not a de Polignac number, because 798342569 - 2²⁰ = 797293993 is a prime.

It is a super-2 number, since 2×798342569² = 1274701714955039522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 798342569.

It is not a weakly prime, because it can be changed into another prime (798342539) 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, 399171284 + 399171285.

It is an arithmetic number, because the mean of its divisors is an integer number (399171285).

Almost surely, 2^798342569 is an apocalyptic number.

It is an amenable number.

798342569 is a deficient number, since it is larger than the sum of its proper divisors (1).

798342569 is an equidigital number, since it uses as much as digits as its factorization.

798342569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3265920, while the sum is 53.

The square root of 798342569 is about 28254.9565386323. The cubic root of 798342569 is about 927.6762307075.

The spelling of 798342569 in words is "seven hundred ninety-eight million, three hundred forty-two thousand, five hundred sixty-nine".