8879559789 has 32 divisors (see below), whose sum is σ = 12366144000. Its totient is φ = 5663024640.

The previous prime is 8879559749. The next prime is 8879559809. The reversal of 8879559789 is 9879559788.

It is not a de Polignac number, because 8879559789 - 2²¹ = 8877462637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8879559789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8879559709) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1444767 + ... + 1450899.

It is an arithmetic number, because the mean of its divisors is an integer number (386442000).

Almost surely, 2^8879559789 is an apocalyptic number.

It is an amenable number.

8879559789 is a deficient number, since it is larger than the sum of its proper divisors (3486584211).

8879559789 is a wasteful number, since it uses less digits than its factorization.

8879559789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6405.

The product of its digits is 457228800, while the sum is 75.

The square root of 8879559789 is about 94231.4161466334. The cubic root of 8879559789 is about 2070.7633915668.

Subtracting 8879559789 from its reverse (9879559788), we obtain a palindrome (999999999).

The spelling of 8879559789 in words is "eight billion, eight hundred seventy-nine million, five hundred fifty-nine thousand, seven hundred eighty-nine".