9894040984 has 32 divisors (see below), whose sum is σ = 18818442720. Its totient is φ = 4875883776.

The previous prime is 9894040957. The next prime is 9894040991. The reversal of 9894040984 is 4890404989.

9894040984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 983709 + ... + 993715.

It is an arithmetic number, because the mean of its divisors is an integer number (588076335).

Almost surely, 2^9894040984 is an apocalyptic number.

It is an amenable number.

9894040984 is a deficient number, since it is larger than the sum of its proper divisors (8924401736).

9894040984 is a wasteful number, since it uses less digits than its factorization.

9894040984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11779 (or 11775 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 55.

The square root of 9894040984 is about 99468.7940210396. The cubic root of 9894040984 is about 2146.7982619112.

The spelling of 9894040984 in words is "nine billion, eight hundred ninety-four million, forty thousand, nine hundred eighty-four".