8643268 has 12 divisors (see below), whose sum is σ = 15351952. Its totient is φ = 4257000.

The previous prime is 8643223. The next prime is 8643281. The reversal of 8643268 is 8623468.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15858 + ... + 16393.

Almost surely, 2^8643268 is an apocalyptic number.

It is an amenable number.

8643268 is a deficient number, since it is larger than the sum of its proper divisors (6708684).

8643268 is a wasteful number, since it uses less digits than its factorization.

8643268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32322 (or 32320 counting only the distinct ones).

The product of its digits is 55296, while the sum is 37.

The square root of 8643268 is about 2939.9435368728. The cubic root of 8643268 is about 205.2229816428. Note that the first 3 decimals are identical.

It can be divided in two parts, 8643 and 268, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 8643268 in words is "eight million, six hundred forty-three thousand, two hundred sixty-eight".