9708986123 has 2 divisors, whose sum is σ = 9708986124. Its totient is φ = 9708986122.

The previous prime is 9708986117. The next prime is 9708986137. The reversal of 9708986123 is 3216898079.

9708986123 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 an emirp because it is prime and its reverse (3216898079) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9708986123 is a prime.

It is a super-2 number, since 2×9708986123² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (9708986143) 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, 4854493061 + 4854493062.

It is an arithmetic number, because the mean of its divisors is an integer number (4854493062).

Almost surely, 2^9708986123 is an apocalyptic number.

9708986123 is a deficient number, since it is larger than the sum of its proper divisors (1).

9708986123 is an equidigital number, since it uses as much as digits as its factorization.

9708986123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The square root of 9708986123 is about 98534.1875848175. The cubic root of 9708986123 is about 2133.3296042714.

The spelling of 9708986123 in words is "nine billion, seven hundred eight million, nine hundred eighty-six thousand, one hundred twenty-three".