9879928843 has 8 divisors (see below), whose sum is σ = 10017891488. Its totient is φ = 9742037184.

The previous prime is 9879928789. The next prime is 9879928901. The reversal of 9879928843 is 3488299789.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9879928843 is a prime.

It is a super-2 number, since 2×9879928843² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9877928843) 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, 302530 + ... + 333592.

It is an arithmetic number, because the mean of its divisors is an integer number (1252236436).

Almost surely, 2^9879928843 is an apocalyptic number.

9879928843 is a deficient number, since it is larger than the sum of its proper divisors (137962645).

9879928843 is a wasteful number, since it uses less digits than its factorization.

9879928843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35493.

The product of its digits is 62705664, while the sum is 67.

The square root of 9879928843 is about 99397.8311785524. The cubic root of 9879928843 is about 2145.7770972455. Note that the first 3 decimals are identical.

The spelling of 9879928843 in words is "nine billion, eight hundred seventy-nine million, nine hundred twenty-eight thousand, eight hundred forty-three".