9931384984 has 16 divisors (see below), whose sum is σ = 18626549400. Its totient is φ = 4964305152.

The previous prime is 9931384973. The next prime is 9931384997. The reversal of 9931384984 is 4894831399.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142674 + ... + 200545.

Almost surely, 2^9931384984 is an apocalyptic number.

It is an amenable number.

9931384984 is a deficient number, since it is larger than the sum of its proper divisors (8695164416).

9931384984 is a wasteful number, since it uses less digits than its factorization.

9931384984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346842 (or 346838 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 58.

The square root of 9931384984 is about 99656.3343897416. The cubic root of 9931384984 is about 2149.4958243795.

The spelling of 9931384984 in words is "nine billion, nine hundred thirty-one million, three hundred eighty-four thousand, nine hundred eighty-four".