8712299447 has 2 divisors, whose sum is σ = 8712299448. Its totient is φ = 8712299446.

The previous prime is 8712299443. The next prime is 8712299521. The reversal of 8712299447 is 7449922178.

It is a happy number.

8712299447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8712299447 - 2² = 8712299443 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8712299443) 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, 4356149723 + 4356149724.

It is an arithmetic number, because the mean of its divisors is an integer number (4356149724).

Almost surely, 2^8712299447 is an apocalyptic number.

8712299447 is a deficient number, since it is larger than the sum of its proper divisors (1).

8712299447 is an equidigital number, since it uses as much as digits as its factorization.

8712299447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2032128, while the sum is 53.

The square root of 8712299447 is about 93339.6992013580. The cubic root of 8712299447 is about 2057.6788704461.

The spelling of 8712299447 in words is "eight billion, seven hundred twelve million, two hundred ninety-nine thousand, four hundred forty-seven".