8721247482 has 20 divisors (see below), whose sum is σ = 19542054906. Its totient is φ = 2907082440.

The previous prime is 8721247477. The next prime is 8721247529. The reversal of 8721247482 is 2847421278.

8721247482 is a `hidden beast` number, since 87 + 21 + 2 + 474 + 82 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8478542241 + 242705241 = 92079^2 + 15579^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 26917269 + ... + 26917592.

Almost surely, 2^8721247482 is an apocalyptic number.

8721247482 is an abundant number, since it is smaller than the sum of its proper divisors (10820807424).

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

8721247482 is a wasteful number, since it uses less digits than its factorization.

8721247482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53834875 (or 53834866 counting only the distinct ones).

The product of its digits is 401408, while the sum is 45.

The square root of 8721247482 is about 93387.6195327839. The cubic root of 8721247482 is about 2058.3830811159.

The spelling of 8721247482 in words is "eight billion, seven hundred twenty-one million, two hundred forty-seven thousand, four hundred eighty-two".