9887275117 has 2 divisors, whose sum is σ = 9887275118. Its totient is φ = 9887275116.

The previous prime is 9887275031. The next prime is 9887275127. The reversal of 9887275117 is 7115727889.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9861681636 + 25593481 = 99306^2 + 5059^2 .

It is a cyclic number.

It is not a de Polignac number, because 9887275117 - 2¹⁵ = 9887242349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9887275127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4943637558 + 4943637559.

It is an arithmetic number, because the mean of its divisors is an integer number (4943637559).

Almost surely, 2^9887275117 is an apocalyptic number.

It is an amenable number.

9887275117 is a deficient number, since it is larger than the sum of its proper divisors (1).

9887275117 is an equidigital number, since it uses as much as digits as its factorization.

9887275117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1975680, while the sum is 55.

The square root of 9887275117 is about 99434.7782066214. The cubic root of 9887275117 is about 2146.3088001677.

The spelling of 9887275117 in words is "nine billion, eight hundred eighty-seven million, two hundred seventy-five thousand, one hundred seventeen".