8957708813 has 2 divisors, whose sum is σ = 8957708814. Its totient is φ = 8957708812.

The previous prime is 8957708737. The next prime is 8957708827. The reversal of 8957708813 is 3188077598.

8957708813 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8863657609 + 94051204 = 94147^2 + 9698^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8957708813 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8957708713) 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, 4478854406 + 4478854407.

It is an arithmetic number, because the mean of its divisors is an integer number (4478854407).

Almost surely, 2^8957708813 is an apocalyptic number.

It is an amenable number.

8957708813 is a deficient number, since it is larger than the sum of its proper divisors (1).

8957708813 is an equidigital number, since it uses as much as digits as its factorization.

8957708813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3386880, while the sum is 56.

The square root of 8957708813 is about 94645.1732155423. The cubic root of 8957708813 is about 2076.8205873298.

The spelling of 8957708813 in words is "eight billion, nine hundred fifty-seven million, seven hundred eight thousand, eight hundred thirteen".