9887654322 has 144 divisors (see below), whose sum is σ = 27565731648. Its totient is φ = 2494134720.

The previous prime is 9887654317. The next prime is 9887654339. The reversal of 9887654322 is 2234567889.

9887654322 is a `hidden beast` number, since 9 + 8 + 8 + 76 + 543 + 22 = 666.

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 860797 + ... + 872207.

It is an arithmetic number, because the mean of its divisors is an integer number (191428692).

Almost surely, 2^9887654322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9887654322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13782865824).

9887654322 is an abundant number, since it is smaller than the sum of its proper divisors (17678077326).

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

9887654322 is a wasteful number, since it uses less digits than its factorization.

9887654322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11485 (or 11459 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 9887654322 is about 99436.6849910032. The cubic root of 9887654322 is about 2146.3362388237.

The spelling of 9887654322 in words is "nine billion, eight hundred eighty-seven million, six hundred fifty-four thousand, three hundred twenty-two".