8469431947 has 2 divisors, whose sum is σ = 8469431948. Its totient is φ = 8469431946.

The previous prime is 8469431941. The next prime is 8469431969. The reversal of 8469431947 is 7491349648.

8469431947 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8469431947 - 2³ = 8469431939 is a prime.

It is not a weakly prime, because it can be changed into another prime (8469431941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4234715973 + 4234715974.

It is an arithmetic number, because the mean of its divisors is an integer number (4234715974).

Almost surely, 2^8469431947 is an apocalyptic number.

8469431947 is a deficient number, since it is larger than the sum of its proper divisors (1).

8469431947 is an equidigital number, since it uses as much as digits as its factorization.

8469431947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5225472, while the sum is 55.

The square root of 8469431947 is about 92029.5167161058. The cubic root of 8469431947 is about 2038.3781761625.

The spelling of 8469431947 in words is "eight billion, four hundred sixty-nine million, four hundred thirty-one thousand, nine hundred forty-seven".