9647723 has 2 divisors, whose sum is σ = 9647724. Its totient is φ = 9647722.

The previous prime is 9647711. The next prime is 9647731. The reversal of 9647723 is 3277469.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9647723 - 2⁴ = 9647707 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (9647773) 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, 4823861 + 4823862.

It is an arithmetic number, because the mean of its divisors is an integer number (4823862).

Almost surely, 2^9647723 is an apocalyptic number.

9647723 is a deficient number, since it is larger than the sum of its proper divisors (1).

9647723 is an equidigital number, since it uses as much as digits as its factorization.

9647723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 38.

The square root of 9647723 is about 3106.0783956623. The cubic root of 9647723 is about 212.8833072524.

The spelling of 9647723 in words is "nine million, six hundred forty-seven thousand, seven hundred twenty-three".