8647879924 has 48 divisors (see below), whose sum is σ = 16005931200. Its totient is φ = 4082190336.

The previous prime is 8647879921. The next prime is 8647879931. The reversal of 8647879924 is 4299787468.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8647879921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1317619 + ... + 1324165.

It is an arithmetic number, because the mean of its divisors is an integer number (333456900).

Almost surely, 2^8647879924 is an apocalyptic number.

It is an amenable number.

8647879924 is a deficient number, since it is larger than the sum of its proper divisors (7358051276).

8647879924 is a wasteful number, since it uses less digits than its factorization.

8647879924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6832 (or 6830 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 64.

The square root of 8647879924 is about 92993.9778910441. The cubic root of 8647879924 is about 2052.5947650031.

The spelling of 8647879924 in words is "eight billion, six hundred forty-seven million, eight hundred seventy-nine thousand, nine hundred twenty-four".