8904947 has 2 divisors, whose sum is σ = 8904948. Its totient is φ = 8904946.

The previous prime is 8904937. The next prime is 8904953. The reversal of 8904947 is 7494098.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8904947 - 2⁸ = 8904691 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8904937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4452473 + 4452474.

It is an arithmetic number, because the mean of its divisors is an integer number (4452474).

Almost surely, 2^8904947 is an apocalyptic number.

8904947 is a deficient number, since it is larger than the sum of its proper divisors (1).

8904947 is an equidigital number, since it uses as much as digits as its factorization.

8904947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 8904947 is about 2984.1157819361. The cubic root of 8904947 is about 207.2734994014.

The spelling of 8904947 in words is "eight million, nine hundred four thousand, nine hundred forty-seven".