9876641 has 2 divisors, whose sum is σ = 9876642. Its totient is φ = 9876640.

The previous prime is 9876623. The next prime is 9876673. The reversal of 9876641 is 1466789.

9876641 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7268416 + 2608225 = 2696^2 + 1615^2 .

It is a cyclic number.

It is not a de Polignac number, because 9876641 - 2⁶ = 9876577 is a prime.

It is a nialpdrome in base 10.

It is not a weakly prime, because it can be changed into another prime (9876611) 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, 4938320 + 4938321.

It is an arithmetic number, because the mean of its divisors is an integer number (4938321).

Almost surely, 2^9876641 is an apocalyptic number.

It is an amenable number.

9876641 is a deficient number, since it is larger than the sum of its proper divisors (1).

9876641 is an equidigital number, since it uses as much as digits as its factorization.

9876641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 41.

The square root of 9876641 is about 3142.7123635484. The cubic root of 9876641 is about 214.5539046916.

The spelling of 9876641 in words is "nine million, eight hundred seventy-six thousand, six hundred forty-one".