8229779228 has 12 divisors (see below), whose sum is σ = 15711396792. Its totient is φ = 3740808720.

The previous prime is 8229779227. The next prime is 8229779231.

It is a happy number.

8229779228 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×8229779228² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8229779227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93520175 + ... + 93520262.

It is an arithmetic number, because the mean of its divisors is an integer number (1309283066).

Almost surely, 2^8229779228 is an apocalyptic number.

It is an amenable number.

8229779228 is a deficient number, since it is larger than the sum of its proper divisors (7481617564).

8229779228 is a wasteful number, since it uses less digits than its factorization.

8229779228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187040452 (or 187040450 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 56.

The square root of 8229779228 is about 90718.1306465251. The cubic root of 8229779228 is about 2018.9678113825.

The spelling of 8229779228 in words is "eight billion, two hundred twenty-nine million, seven hundred seventy-nine thousand, two hundred twenty-eight".