9875643 has 4 divisors (see below), whose sum is σ = 13167528. Its totient is φ = 6583760.

The previous prime is 9875587. The next prime is 9875651. The reversal of 9875643 is 3465789.

It is a happy number.

9875643 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3465789 = 3 ⋅1155263.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9875643 is a prime.

9875643 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 9875595 and 9875604.

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1645938 + ... + 1645943.

It is an arithmetic number, because the mean of its divisors is an integer number (3291882).

Almost surely, 2^9875643 is an apocalyptic number.

9875643 is a deficient number, since it is larger than the sum of its proper divisors (3291885).

9875643 is a wasteful number, since it uses less digits than its factorization.

9875643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3291884.

The product of its digits is 181440, while the sum is 42.

The square root of 9875643 is about 3142.5535794955. The cubic root of 9875643 is about 214.5466778079.

It can be divided in two parts, 987564 and 3, that multiplied together give a palindrome (2962692).

The spelling of 9875643 in words is "nine million, eight hundred seventy-five thousand, six hundred forty-three".