9943172884 has 12 divisors (see below), whose sum is σ = 17401384224. Its totient is φ = 4971348824.

The previous prime is 9943172797. The next prime is 9943172893. The reversal of 9943172884 is 4882713499.

It is a super-2 number, since 2×9943172884² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62577 + ... + 154279.

It is an arithmetic number, because the mean of its divisors is an integer number (1450115352).

Almost surely, 2^9943172884 is an apocalyptic number.

It is an amenable number.

9943172884 is a deficient number, since it is larger than the sum of its proper divisors (7458211340).

9943172884 is a wasteful number, since it uses less digits than its factorization.

9943172884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118814 (or 118812 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 55.

The square root of 9943172884 is about 99715.4596038147. The cubic root of 9943172884 is about 2150.3459247973.

The spelling of 9943172884 in words is "nine billion, nine hundred forty-three million, one hundred seventy-two thousand, eight hundred eighty-four".