5197847729 has 2 divisors, whose sum is σ = 5197847730. Its totient is φ = 5197847728.

The previous prime is 5197847713. The next prime is 5197847731. The reversal of 5197847729 is 9277487915.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3175097104 + 2022750625 = 56348^2 + 44975^2 .

It is a cyclic number.

It is not a de Polignac number, because 5197847729 - 2⁴ = 5197847713 is a prime.

Together with 5197847731, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5197847749) 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, 2598923864 + 2598923865.

It is an arithmetic number, because the mean of its divisors is an integer number (2598923865).

Almost surely, 2^5197847729 is an apocalyptic number.

It is an amenable number.

5197847729 is a deficient number, since it is larger than the sum of its proper divisors (1).

5197847729 is an equidigital number, since it uses as much as digits as its factorization.

5197847729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8890560, while the sum is 59.

The square root of 5197847729 is about 72096.1006504513. The cubic root of 5197847729 is about 1732.2391544528.

The spelling of 5197847729 in words is "five billion, one hundred ninety-seven million, eight hundred forty-seven thousand, seven hundred twenty-nine".