8447013772 has 12 divisors (see below), whose sum is σ = 14798056840. Its totient is φ = 4218997536.

The previous prime is 8447013769. The next prime is 8447013779. The reversal of 8447013772 is 2773107448.

It is not an unprimeable number, because it can be changed into a prime (8447013779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1123122 + ... + 1130617.

Almost surely, 2^8447013772 is an apocalyptic number.

It is an amenable number.

8447013772 is a deficient number, since it is larger than the sum of its proper divisors (6351043068).

8447013772 is a wasteful number, since it uses less digits than its factorization.

8447013772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2254680 (or 2254678 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 43.

The square root of 8447013772 is about 91907.6371799428. The cubic root of 8447013772 is about 2036.5780909718.

The spelling of 8447013772 in words is "eight billion, four hundred forty-seven million, thirteen thousand, seven hundred seventy-two".