9662161 has 2 divisors, whose sum is σ = 9662162. Its totient is φ = 9662160.

The previous prime is 9662153. The next prime is 9662179. The reversal of 9662161 is 1612669.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8410000 + 1252161 = 2900^2 + 1119^2 .

It is an emirp because it is prime and its reverse (1612669) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9662161 - 2³ = 9662153 is a prime.

It is not a weakly prime, because it can be changed into another prime (9662131) 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, 4831080 + 4831081.

It is an arithmetic number, because the mean of its divisors is an integer number (4831081).

Almost surely, 2^9662161 is an apocalyptic number.

It is an amenable number.

9662161 is a deficient number, since it is larger than the sum of its proper divisors (1).

9662161 is an equidigital number, since it uses as much as digits as its factorization.

9662161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 31.

The square root of 9662161 is about 3108.4016793201. The cubic root of 9662161 is about 212.9894489546.

The spelling of 9662161 in words is "nine million, six hundred sixty-two thousand, one hundred sixty-one".