9887983271 has 2 divisors, whose sum is σ = 9887983272. Its totient is φ = 9887983270.

The previous prime is 9887983247. The next prime is 9887983277. The reversal of 9887983271 is 1723897889.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9887983271 - 2²⁶ = 9820874407 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9887983277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4943991635 + 4943991636.

It is an arithmetic number, because the mean of its divisors is an integer number (4943991636).

Almost surely, 2^9887983271 is an apocalyptic number.

9887983271 is a deficient number, since it is larger than the sum of its proper divisors (1).

9887983271 is an equidigital number, since it uses as much as digits as its factorization.

9887983271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12192768, while the sum is 62.

The square root of 9887983271 is about 99438.3390398291. The cubic root of 9887983271 is about 2146.3600404692.

The spelling of 9887983271 in words is "nine billion, eight hundred eighty-seven million, nine hundred eighty-three thousand, two hundred seventy-one".