9925979017 has 2 divisors, whose sum is σ = 9925979018. Its totient is φ = 9925979016.

The previous prime is 9925978967. The next prime is 9925979081. The reversal of 9925979017 is 7109795299.

9925979017 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 can be written as a sum of positive squares in only one way, i.e., 9048575376 + 877403641 = 95124^2 + 29621^2 .

It is an emirp because it is prime and its reverse (7109795299) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9925979017 - 2⁷ = 9925978889 is a prime.

It is not a weakly prime, because it can be changed into another prime (9925979617) 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, 4962989508 + 4962989509.

It is an arithmetic number, because the mean of its divisors is an integer number (4962989509).

Almost surely, 2^9925979017 is an apocalyptic number.

It is an amenable number.

9925979017 is a deficient number, since it is larger than the sum of its proper divisors (1).

9925979017 is an equidigital number, since it uses as much as digits as its factorization.

9925979017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3214890, while the sum is 58.

The square root of 9925979017 is about 99629.2076501665. The cubic root of 9925979017 is about 2149.1057407357.

The spelling of 9925979017 in words is "nine billion, nine hundred twenty-five million, nine hundred seventy-nine thousand, seventeen".