9879339789 has 12 divisors (see below), whose sum is σ = 15567444672. Its totient is φ = 5987478600.

The previous prime is 9879339739. The next prime is 9879339797.

9879339789 is a `hidden beast` number, since 98 + 79 + 3 + 397 + 89 = 666.

9879339789 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 9879339789 - 2¹² = 9879335693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9879339709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49895557 + ... + 49895754.

It is an arithmetic number, because the mean of its divisors is an integer number (1297287056).

Almost surely, 2^9879339789 is an apocalyptic number.

9879339789 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

It is an amenable number.

9879339789 is a deficient number, since it is larger than the sum of its proper divisors (5688104883).

9879339789 is a wasteful number, since it uses less digits than its factorization.

9879339789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99791328 (or 99791325 counting only the distinct ones).

The product of its digits is 185177664, while the sum is 72.

The square root of 9879339789 is about 99394.8680214426. The cubic root of 9879339789 is about 2145.7344517392.

The spelling of 9879339789 in words is "nine billion, eight hundred seventy-nine million, three hundred thirty-nine thousand, seven hundred eighty-nine".