9887943 has 8 divisors (see below), whose sum is σ = 14198128. Its totient is φ = 6084864.

The previous prime is 9887939. The next prime is 9887971. The reversal of 9887943 is 3497889.

9887943 is digitally balanced in base 2 and base 4, 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 9887943 - 2² = 9887939 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 9887892 and 9887901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9887993) 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, 126730 + ... + 126807.

It is an arithmetic number, because the mean of its divisors is an integer number (1774766).

Almost surely, 2^9887943 is an apocalyptic number.

9887943 is a deficient number, since it is larger than the sum of its proper divisors (4310185).

9887943 is a wasteful number, since it uses less digits than its factorization.

9887943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253553.

The product of its digits is 435456, while the sum is 48.

The square root of 9887943 is about 3144.5099777231. The cubic root of 9887943 is about 214.6357126623.

The spelling of 9887943 in words is "nine million, eight hundred eighty-seven thousand, nine hundred forty-three".