9947653 has 2 divisors, whose sum is σ = 9947654. Its totient is φ = 9947652.

The previous prime is 9947627. The next prime is 9947671. The reversal of 9947653 is 3567499.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9253764 + 693889 = 3042^2 + 833^2 .

It is a cyclic number.

It is not a de Polignac number, because 9947653 - 2⁹ = 9947141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9947153) 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, 4973826 + 4973827.

It is an arithmetic number, because the mean of its divisors is an integer number (4973827).

Almost surely, 2^9947653 is an apocalyptic number.

It is an amenable number.

9947653 is a deficient number, since it is larger than the sum of its proper divisors (1).

9947653 is an equidigital number, since it uses as much as digits as its factorization.

9947653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 43.

The square root of 9947653 is about 3153.9900126665. The cubic root of 9947653 is about 215.0668838243.

The spelling of 9947653 in words is "nine million, nine hundred forty-seven thousand, six hundred fifty-three".