9712782713 has 2 divisors, whose sum is σ = 9712782714. Its totient is φ = 9712782712.

The previous prime is 9712782671. The next prime is 9712782823. The reversal of 9712782713 is 3172872179.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8485541689 + 1227241024 = 92117^2 + 35032^2 .

It is an emirp because it is prime and its reverse (3172872179) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9712782713 - 2²⁸ = 9444347257 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (9712782113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4856391356 + 4856391357.

It is an arithmetic number, because the mean of its divisors is an integer number (4856391357).

Almost surely, 2^9712782713 is an apocalyptic number.

It is an amenable number.

9712782713 is a deficient number, since it is larger than the sum of its proper divisors (1).

9712782713 is an equidigital number, since it uses as much as digits as its factorization.

9712782713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 296352, while the sum is 47.

The square root of 9712782713 is about 98553.4510456128. The cubic root of 9712782713 is about 2133.6076395624.

The spelling of 9712782713 in words is "nine billion, seven hundred twelve million, seven hundred eighty-two thousand, seven hundred thirteen".