9686161 has 2 divisors, whose sum is σ = 9686162. Its totient is φ = 9686160.

The previous prime is 9686153. The next prime is 9686189. The reversal of 9686161 is 1616869.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9492561 + 193600 = 3081^2 + 440^2 .

It is a cyclic number.

It is not a de Polignac number, because 9686161 - 2³ = 9686153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9686161.

It is not a weakly prime, because it can be changed into another prime (9686191) 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, 4843080 + 4843081.

It is an arithmetic number, because the mean of its divisors is an integer number (4843081).

Almost surely, 2^9686161 is an apocalyptic number.

It is an amenable number.

9686161 is a deficient number, since it is larger than the sum of its proper divisors (1).

9686161 is an equidigital number, since it uses as much as digits as its factorization.

9686161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 37.

The square root of 9686161 is about 3112.2597899276. The cubic root of 9686161 is about 213.1656524706.

The spelling of 9686161 in words is "nine million, six hundred eighty-six thousand, one hundred sixty-one".