8668563 has 8 divisors (see below), whose sum is σ = 11572176. Its totient is φ = 5772000.

The previous prime is 8668553. The next prime is 8668571. The reversal of 8668563 is 3658668.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8668563 - 2⁴ = 8668547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8668523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2793 + ... + 5013.

It is an arithmetic number, because the mean of its divisors is an integer number (1446522).

Almost surely, 2^8668563 is an apocalyptic number.

8668563 is a deficient number, since it is larger than the sum of its proper divisors (2903613).

8668563 is a wasteful number, since it uses less digits than its factorization.

8668563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3525.

The product of its digits is 207360, while the sum is 42.

The square root of 8668563 is about 2944.2423473621. The cubic root of 8668563 is about 205.4229854496.

The spelling of 8668563 in words is "eight million, six hundred sixty-eight thousand, five hundred sixty-three".