8664243 has 32 divisors (see below), whose sum is σ = 14031360. Its totient is φ = 4650240.

The previous prime is 8664223. The next prime is 8664259. The reversal of 8664243 is 3424668.

It is not a de Polignac number, because 8664243 - 2⁸ = 8663987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8664223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24796 + ... + 25142.

It is an arithmetic number, because the mean of its divisors is an integer number (438480).

Almost surely, 2^8664243 is an apocalyptic number.

8664243 is a deficient number, since it is larger than the sum of its proper divisors (5367117).

8664243 is a wasteful number, since it uses less digits than its factorization.

8664243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427.

The product of its digits is 27648, while the sum is 33.

The square root of 8664243 is about 2943.5086206770. The cubic root of 8664243 is about 205.3888554269.

The spelling of 8664243 in words is "eight million, six hundred sixty-four thousand, two hundred forty-three".