9969644327 has 4 divisors (see below), whose sum is σ = 10011358560. Its totient is φ = 9927930096.

The previous prime is 9969644303. The next prime is 9969644431. The reversal of 9969644327 is 7234469699.

It is a happy number.

9969644327 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 not a de Polignac number, because 9969644327 - 2⁶ = 9969644263 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 (9969644227) 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, 20856758 + ... + 20857235.

It is an arithmetic number, because the mean of its divisors is an integer number (2502839640).

Almost surely, 2^9969644327 is an apocalyptic number.

9969644327 is a deficient number, since it is larger than the sum of its proper divisors (41714233).

9969644327 is a wasteful number, since it uses less digits than its factorization.

9969644327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41714232.

The product of its digits is 17635968, while the sum is 59.

The square root of 9969644327 is about 99848.1062764838. The cubic root of 9969644327 is about 2152.2525033169.

The spelling of 9969644327 in words is "nine billion, nine hundred sixty-nine million, six hundred forty-four thousand, three hundred twenty-seven".