9471947 has 2 divisors, whose sum is σ = 9471948. Its totient is φ = 9471946.

The previous prime is 9471901. The next prime is 9471949. The reversal of 9471947 is 7491749.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (7491749) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9471947 - 2⁸ = 9471691 is a prime.

Together with 9471949, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (9471949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4735973 + 4735974.

It is an arithmetic number, because the mean of its divisors is an integer number (4735974).

Almost surely, 2^9471947 is an apocalyptic number.

9471947 is a deficient number, since it is larger than the sum of its proper divisors (1).

9471947 is an equidigital number, since it uses as much as digits as its factorization.

9471947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 41.

The square root of 9471947 is about 3077.6528394216. The cubic root of 9471947 is about 211.5825042740.

The spelling of 9471947 in words is "nine million, four hundred seventy-one thousand, nine hundred forty-seven".