8784221058 has 18 divisors (see below), whose sum is σ = 19033340547. Its totient is φ = 2927941140.

The previous prime is 8784221051. The next prime is 8784221081. The reversal of 8784221058 is 8501224878.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4392110529 + 4392110529 = 66273^2 + 66273^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=66273.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8784221051) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 386593 + ... + 408683.

Almost surely, 2^8784221058 is an apocalyptic number.

8784221058 is an abundant number, since it is smaller than the sum of its proper divisors (10249119489).

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

8784221058 is an frugal number, since it uses more digits than its factorization.

8784221058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44190 (or 22096 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 45.

The square root of 8784221058 is about 93724.1754191521. The cubic root of 8784221058 is about 2063.3255314370.

It can be divided in two parts, 87842 and 21058, that added together give a square (108900 = 330²).

The spelling of 8784221058 in words is "eight billion, seven hundred eighty-four million, two hundred twenty-one thousand, fifty-eight".