9875681 has 8 divisors (see below), whose sum is σ = 10174560. Its totient is φ = 9580032.

The previous prime is 9875669. The next prime is 9875683. The reversal of 9875681 is 1865789.

It is a happy number.

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 9875681 - 2¹⁸ = 9613537 is a prime.

It is a super-2 number, since 2×9875681² = 195058150427522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9875683) 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, 6305 + ... + 7713.

It is an arithmetic number, because the mean of its divisors is an integer number (1271820).

Almost surely, 2^9875681 is an apocalyptic number.

It is an amenable number.

9875681 is a deficient number, since it is larger than the sum of its proper divisors (298879).

9875681 is a wasteful number, since it uses less digits than its factorization.

9875681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615.

The product of its digits is 120960, while the sum is 44.

The square root of 9875681 is about 3142.5596255282. The cubic root of 9875681 is about 214.5469529887.

The spelling of 9875681 in words is "nine million, eight hundred seventy-five thousand, six hundred eighty-one".