9927681684 has 24 divisors (see below), whose sum is σ = 23170842240. Its totient is φ = 3308334144.

The previous prime is 9927681683. The next prime is 9927681721. The reversal of 9927681684 is 4861867299.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9927681683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64524 + ... + 154979.

It is an arithmetic number, because the mean of its divisors is an integer number (965451760).

Almost surely, 2^9927681684 is an apocalyptic number.

It is an amenable number.

9927681684 is an abundant number, since it is smaller than the sum of its proper divisors (13243160556).

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

9927681684 is a wasteful number, since it uses less digits than its factorization.

9927681684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223279 (or 223277 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 60.

The square root of 9927681684 is about 99637.7523030302. The cubic root of 9927681684 is about 2149.2286170185.

The spelling of 9927681684 in words is "nine billion, nine hundred twenty-seven million, six hundred eighty-one thousand, six hundred eighty-four".