8663943 has 16 divisors (see below), whose sum is σ = 12293120. Its totient is φ = 5412096.

The previous prime is 8663923. The next prime is 8663959. The reversal of 8663943 is 3493668.

8663943 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8663943 - 2⁸ = 8663687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8663923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4746 + ... + 6312.

It is an arithmetic number, because the mean of its divisors is an integer number (768320).

Almost surely, 2^8663943 is an apocalyptic number.

8663943 is a deficient number, since it is larger than the sum of its proper divisors (3629177).

8663943 is a wasteful number, since it uses less digits than its factorization.

8663943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686.

The product of its digits is 93312, while the sum is 39.

The square root of 8663943 is about 2943.4576606433. The cubic root of 8663943 is about 205.3864848652.

The spelling of 8663943 in words is "eight million, six hundred sixty-three thousand, nine hundred forty-three".