9869881 has 8 divisors (see below), whose sum is σ = 11344320. Its totient is φ = 8411568.

The previous prime is 9869869. The next prime is 9869903. The reversal of 9869881 is 1889689.

It is a happy number.

9869881 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 9869881 - 2¹⁹ = 9345593 is a prime.

It is a super-2 number, since 2×9869881² = 194829101908322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9869801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2686 + ... + 5191.

It is an arithmetic number, because the mean of its divisors is an integer number (1418040).

Almost surely, 2^9869881 is an apocalyptic number.

It is an amenable number.

9869881 is a deficient number, since it is larger than the sum of its proper divisors (1474439).

9869881 is a wasteful number, since it uses less digits than its factorization.

9869881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8063.

The product of its digits is 248832, while the sum is 49.

The square root of 9869881 is about 3141.6366753652. The cubic root of 9869881 is about 214.5049435309.

The spelling of 9869881 in words is "nine million, eight hundred sixty-nine thousand, eight hundred eighty-one".