9876161 has 2 divisors, whose sum is σ = 9876162. Its totient is φ = 9876160.

The previous prime is 9876149. The next prime is 9876271. The reversal of 9876161 is 1616789.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7756225 + 2119936 = 2785^2 + 1456^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9876161 is a prime.

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

It is not a weakly prime, because it can be changed into another prime (9876101) 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, 4938080 + 4938081.

It is an arithmetic number, because the mean of its divisors is an integer number (4938081).

Almost surely, 2^9876161 is an apocalyptic number.

It is an amenable number.

9876161 is a deficient number, since it is larger than the sum of its proper divisors (1).

9876161 is an equidigital number, since it uses as much as digits as its factorization.

9876161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 38.

The square root of 9876161 is about 3142.6359954662. The cubic root of 9876161 is about 214.5504288965.

The spelling of 9876161 in words is "nine million, eight hundred seventy-six thousand, one hundred sixty-one".