8147047 has 2 divisors, whose sum is σ = 8147048. Its totient is φ = 8147046.

The previous prime is 8147039. The next prime is 8147053. The reversal of 8147047 is 7407418.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8147047 - 2³ = 8147039 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8147147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4073523 + 4073524.

It is an arithmetic number, because the mean of its divisors is an integer number (4073524).

Almost surely, 2^8147047 is an apocalyptic number.

8147047 is a deficient number, since it is larger than the sum of its proper divisors (1).

8147047 is an equidigital number, since it uses as much as digits as its factorization.

8147047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 8147047 is about 2854.3032424744. The cubic root of 8147047 is about 201.2179594839.

The spelling of 8147047 in words is "eight million, one hundred forty-seven thousand, forty-seven".