9816961 has 8 divisors (see below), whose sum is σ = 12239424. Its totient is φ = 7649520.

The previous prime is 9816959. The next prime is 9816971. The reversal of 9816961 is 1696189.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9816961 - 2¹ = 9816959 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9816941) 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 in 7 ways as a sum of consecutive naturals, for example, 63670 + ... + 63823.

It is an arithmetic number, because the mean of its divisors is an integer number (1529928).

Almost surely, 2^9816961 is an apocalyptic number.

It is an amenable number.

9816961 is a deficient number, since it is larger than the sum of its proper divisors (2422463).

9816961 is a wasteful number, since it uses less digits than its factorization.

9816961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127511.

The product of its digits is 23328, while the sum is 40.

The square root of 9816961 is about 3133.2029937430. The cubic root of 9816961 is about 214.1208811335.

The spelling of 9816961 in words is "nine million, eight hundred sixteen thousand, nine hundred sixty-one".