108638563 has 8 divisors (see below), whose sum is σ = 118719216. Its totient is φ = 98592000.

The previous prime is 108638533. The next prime is 108638581. The reversal of 108638563 is 365836801.

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

It is a cyclic number.

It is not a de Polignac number, because 108638563 - 2⁵ = 108638531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (108638513) 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, 1606 + ... + 14827.

It is an arithmetic number, because the mean of its divisors is an integer number (14839902).

Almost surely, 2^108638563 is an apocalyptic number.

108638563 is a deficient number, since it is larger than the sum of its proper divisors (10080653).

108638563 is a wasteful number, since it uses less digits than its factorization.

108638563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17045.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 108638563 is about 10422.9824426601. The cubic root of 108638563 is about 477.1570418197.

The spelling of 108638563 in words is "one hundred eight million, six hundred thirty-eight thousand, five hundred sixty-three".