9872081 has 8 divisors (see below), whose sum is σ = 10188864. Its totient is φ = 9558000.

The previous prime is 9872063. The next prime is 9872089. The reversal of 9872081 is 1802789.

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 9872081 - 2⁶ = 9872017 is a prime.

It is a super-2 number, since 2×9872081² = 194915966541122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9872089) 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, 8756 + ... + 9818.

It is an arithmetic number, because the mean of its divisors is an integer number (1273608).

Almost surely, 2^9872081 is an apocalyptic number.

It is an amenable number.

9872081 is a deficient number, since it is larger than the sum of its proper divisors (316783).

9872081 is a wasteful number, since it uses less digits than its factorization.

9872081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 9872081 is about 3141.9867918246. The cubic root of 9872081 is about 214.5208800897.

The spelling of 9872081 in words is "nine million, eight hundred seventy-two thousand, eighty-one".