8999984334 has 64 divisors (see below), whose sum is σ = 20744190720. Its totient is φ = 2574432000.

The previous prime is 8999984281. The next prime is 8999984351. The reversal of 8999984334 is 4334899998.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 339604 + ... + 365144.

It is an arithmetic number, because the mean of its divisors is an integer number (324127980).

Almost surely, 2^8999984334 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8999984334, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10372095360).

8999984334 is an abundant number, since it is smaller than the sum of its proper divisors (11744206386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8999984334 is a wasteful number, since it uses less digits than its factorization.

8999984334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25857.

The product of its digits is 60466176, while the sum is 66.

The square root of 8999984334 is about 94868.2472379457. The cubic root of 8999984334 is about 2080.0826161403.

The spelling of 8999984334 in words is "eight billion, nine hundred ninety-nine million, nine hundred eighty-four thousand, three hundred thirty-four".