9713998447 has 2 divisors, whose sum is σ = 9713998448. Its totient is φ = 9713998446.

The previous prime is 9713998433. The next prime is 9713998453. The reversal of 9713998447 is 7448993179.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9713998447 - 2¹⁹ = 9713474159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9713998477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4856999223 + 4856999224.

It is an arithmetic number, because the mean of its divisors is an integer number (4856999224).

Almost surely, 2^9713998447 is an apocalyptic number.

9713998447 is a deficient number, since it is larger than the sum of its proper divisors (1).

9713998447 is an equidigital number, since it uses as much as digits as its factorization.

9713998447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13716864, while the sum is 61.

The square root of 9713998447 is about 98559.6187441895. The cubic root of 9713998447 is about 2133.6966559720.

The spelling of 9713998447 in words is "nine billion, seven hundred thirteen million, nine hundred ninety-eight thousand, four hundred forty-seven".