8289779828 has 48 divisors (see below), whose sum is σ = 16007217408. Its totient is φ = 3725040000.

The previous prime is 8289779809. The next prime is 8289779881.

8289779828 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4429733 + ... + 4431603.

It is an arithmetic number, because the mean of its divisors is an integer number (333483696).

Almost surely, 2^8289779828 is an apocalyptic number.

It is an amenable number.

8289779828 is a deficient number, since it is larger than the sum of its proper divisors (7717437580).

8289779828 is a wasteful number, since it uses less digits than its factorization.

8289779828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2984 (or 2982 counting only the distinct ones).

The product of its digits is 65028096, while the sum is 68.

The square root of 8289779828 is about 91048.2280332792. The cubic root of 8289779828 is about 2023.8624777673.

The spelling of 8289779828 in words is "eight billion, two hundred eighty-nine million, seven hundred seventy-nine thousand, eight hundred twenty-eight".