9668161 has 4 divisors (see below), whose sum is σ = 9684400. Its totient is φ = 9651924.

The previous prime is 9668147. The next prime is 9668171. The reversal of 9668161 is 1618669.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1618669 = 13 ⋅124513.

It is a cyclic number.

It is not a de Polignac number, because 9668161 - 2¹⁷ = 9537089 is a prime.

It is a Duffinian number.

9668161 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 9668161.

It is not an unprimeable number, because it can be changed into a prime (9668111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7191 + ... + 8428.

It is an arithmetic number, because the mean of its divisors is an integer number (2421100).

Almost surely, 2^9668161 is an apocalyptic number.

It is an amenable number.

9668161 is a deficient number, since it is larger than the sum of its proper divisors (16239).

9668161 is a wasteful number, since it uses less digits than its factorization.

9668161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16238.

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

The square root of 9668161 is about 3109.3666557677. The cubic root of 9668161 is about 213.0335271638.

It can be divided in two parts, 96 and 68161, that multiplied together give a palindrome (6543456).

The spelling of 9668161 in words is "nine million, six hundred sixty-eight thousand, one hundred sixty-one".