9989941327 has 4 divisors (see below), whose sum is σ = 10178430840. Its totient is φ = 9801451816.

The previous prime is 9989941271. The next prime is 9989941361. The reversal of 9989941327 is 7231499899.

9989941327 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9989941327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9989941127) 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 in 3 ways as a sum of consecutive naturals, for example, 94244677 + ... + 94244782.

It is an arithmetic number, because the mean of its divisors is an integer number (2544607710).

Almost surely, 2^9989941327 is an apocalyptic number.

9989941327 is a deficient number, since it is larger than the sum of its proper divisors (188489513).

9989941327 is a wasteful number, since it uses less digits than its factorization.

9989941327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188489512.

The product of its digits is 8817984, while the sum is 61.

The square root of 9989941327 is about 99949.6939815225. The cubic root of 9989941327 is about 2153.7120892293.

The spelling of 9989941327 in words is "nine billion, nine hundred eighty-nine million, nine hundred forty-one thousand, three hundred twenty-seven".