9964238117 has 2 divisors, whose sum is σ = 9964238118. Its totient is φ = 9964238116.

The previous prime is 9964238113. The next prime is 9964238239. The reversal of 9964238117 is 7118324699.

9964238117 is digitally balanced in base 3, 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., 8992918561 + 971319556 = 94831^2 + 31166^2 .

It is a cyclic number.

It is not a de Polignac number, because 9964238117 - 2² = 9964238113 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9964238111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4982119058 + 4982119059.

It is an arithmetic number, because the mean of its divisors is an integer number (4982119059).

Almost surely, 2^9964238117 is an apocalyptic number.

It is an amenable number.

9964238117 is a deficient number, since it is larger than the sum of its proper divisors (1).

9964238117 is an equidigital number, since it uses as much as digits as its factorization.

9964238117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 50.

The square root of 9964238117 is about 99821.0304344731. The cubic root of 9964238117 is about 2151.8634010766.

The spelling of 9964238117 in words is "nine billion, nine hundred sixty-four million, two hundred thirty-eight thousand, one hundred seventeen".