8447360947 has 4 divisors (see below), whose sum is σ = 8585842336. Its totient is φ = 8308879560.

The previous prime is 8447360941. The next prime is 8447360963. The reversal of 8447360947 is 7490637448.

8447360947 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8447360947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8447360894 and 8447360903.

It is not an unprimeable number, because it can be changed into a prime (8447360941) 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, 69240603 + ... + 69240724.

It is an arithmetic number, because the mean of its divisors is an integer number (2146460584).

Almost surely, 2^8447360947 is an apocalyptic number.

8447360947 is a deficient number, since it is larger than the sum of its proper divisors (138481389).

8447360947 is a wasteful number, since it uses less digits than its factorization.

8447360947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138481388.

The product of its (nonzero) digits is 4064256, while the sum is 52.

The square root of 8447360947 is about 91909.5258773540. The cubic root of 8447360947 is about 2036.6059919291.

The spelling of 8447360947 in words is "eight billion, four hundred forty-seven million, three hundred sixty thousand, nine hundred forty-seven".