9666843 has 4 divisors (see below), whose sum is σ = 12889128. Its totient is φ = 6444560.

The previous prime is 9666821. The next prime is 9666847. The reversal of 9666843 is 3486669.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3486669 = 3 ⋅1162223.

It is a cyclic number.

It is not a de Polignac number, because 9666843 - 2⁶ = 9666779 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9666795 and 9666804.

It is not an unprimeable number, because it can be changed into a prime (9666847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1611138 + ... + 1611143.

It is an arithmetic number, because the mean of its divisors is an integer number (3222282).

Almost surely, 2^9666843 is an apocalyptic number.

9666843 is a deficient number, since it is larger than the sum of its proper divisors (3222285).

9666843 is a wasteful number, since it uses less digits than its factorization.

9666843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3222284.

The product of its digits is 186624, while the sum is 42.

The square root of 9666843 is about 3109.1547082768. The cubic root of 9666843 is about 213.0238462138.

The spelling of 9666843 in words is "nine million, six hundred sixty-six thousand, eight hundred forty-three".