8910647947 has 2 divisors, whose sum is σ = 8910647948. Its totient is φ = 8910647946.

The previous prime is 8910647923. The next prime is 8910647969. The reversal of 8910647947 is 7497460198.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8910647947 - 2⁷ = 8910647819 is a prime.

It is not a weakly prime, because it can be changed into another prime (8910642947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4455323973 + 4455323974.

It is an arithmetic number, because the mean of its divisors is an integer number (4455323974).

Almost surely, 2^8910647947 is an apocalyptic number.

8910647947 is a deficient number, since it is larger than the sum of its proper divisors (1).

8910647947 is an equidigital number, since it uses as much as digits as its factorization.

8910647947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3048192, while the sum is 55.

The square root of 8910647947 is about 94396.2284574972. The cubic root of 8910647947 is about 2073.1772212982.

The spelling of 8910647947 in words is "eight billion, nine hundred ten million, six hundred forty-seven thousand, nine hundred forty-seven".