8736763221 has 8 divisors (see below), whose sum is σ = 12943352960. Its totient is φ = 5824508796.

The previous prime is 8736763171. The next prime is 8736763253. The reversal of 8736763221 is 1223676378.

8736763221 is a `hidden beast` number, since 8 + 7 + 3 + 6 + 7 + 632 + 2 + 1 = 666.

8736763221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8736763221 - 2⁶ = 8736763157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8736763261) 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 7 ways as a sum of consecutive naturals, for example, 161791885 + ... + 161791938.

It is an arithmetic number, because the mean of its divisors is an integer number (1617919120).

Almost surely, 2^8736763221 is an apocalyptic number.

It is an amenable number.

8736763221 is a deficient number, since it is larger than the sum of its proper divisors (4206589739).

8736763221 is a wasteful number, since it uses less digits than its factorization.

8736763221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323583832 (or 323583826 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 8736763221 is about 93470.6543306508. The cubic root of 8736763221 is about 2059.6030294391.

The spelling of 8736763221 in words is "eight billion, seven hundred thirty-six million, seven hundred sixty-three thousand, two hundred twenty-one".