9163961 has 4 divisors (see below), whose sum is σ = 9245172. Its totient is φ = 9082752.

The previous prime is 9163943. The next prime is 9163963. The reversal of 9163961 is 1693619.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1693619 = 991 ⋅1709.

It can be written as a sum of positive squares in 2 ways, for example, as 4515625 + 4648336 = 2125^2 + 2156^2 .

It is a cyclic number.

It is not a de Polignac number, because 9163961 - 2⁶ = 9163897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9163963) 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 in 3 ways as a sum of consecutive naturals, for example, 40436 + ... + 40661.

It is an arithmetic number, because the mean of its divisors is an integer number (2311293).

Almost surely, 2^9163961 is an apocalyptic number.

It is an amenable number.

9163961 is a deficient number, since it is larger than the sum of its proper divisors (81211).

9163961 is a wasteful number, since it uses less digits than its factorization.

9163961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81210.

The product of its digits is 8748, while the sum is 35.

The square root of 9163961 is about 3027.2034949768. The cubic root of 9163961 is about 209.2639461859.

The spelling of 9163961 in words is "nine million, one hundred sixty-three thousand, nine hundred sixty-one".