9875986884 has 45 divisors (see below), whose sum is σ = 25822457661. Its totient is φ = 3291399360.

The previous prime is 9875986873. The next prime is 9875986921. The reversal of 9875986884 is 4886895789.

The square root of 9875986884 is 99378.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2779609284 + 7096377600 = 52722^2 + 84240^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1786044 + ... + 1791564.

Almost surely, 2^9875986884 is an apocalyptic number.

9875986884 is the 99378-th square number.

It is an amenable number.

9875986884 is an abundant number, since it is smaller than the sum of its proper divisors (15946470777).

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

9875986884 is an frugal number, since it uses more digits than its factorization.

9875986884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11058 (or 5526 counting only the distinct ones).

The product of its digits is 278691840, while the sum is 72.

The cubic root of 9875986884 is about 2145.4916805293.

The spelling of 9875986884 in words is "nine billion, eight hundred seventy-five million, nine hundred eighty-six thousand, eight hundred eighty-four".