8819987472 has 30 divisors (see below), whose sum is σ = 24683715342. Its totient is φ = 2939995776.

The previous prime is 8819987437. The next prime is 8819987483. The reversal of 8819987472 is 2747899188.

8819987472 is a `hidden beast` number, since 8 + 81 + 9 + 9 + 87 + 472 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6603837696 + 2216149776 = 81264^2 + 47076^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30624813 + ... + 30625100.

Almost surely, 2^8819987472 is an apocalyptic number.

It is an amenable number.

8819987472 is an abundant number, since it is smaller than the sum of its proper divisors (15863727870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8819987472 is a wasteful number, since it uses less digits than its factorization.

8819987472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61249927 (or 61249918 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 63.

The square root of 8819987472 is about 93914.7883562541. The cubic root of 8819987472 is about 2066.1221300465.

The spelling of 8819987472 in words is "eight billion, eight hundred nineteen million, nine hundred eighty-seven thousand, four hundred seventy-two".