108639323 has 4 divisors (see below), whose sum is σ = 116996208. Its totient is φ = 100282440.

The previous prime is 108639287. The next prime is 108639331. The reversal of 108639323 is 323936801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 108639323 - 2¹² = 108635227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108639343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4178423 + ... + 4178448.

It is an arithmetic number, because the mean of its divisors is an integer number (29249052).

Almost surely, 2^108639323 is an apocalyptic number.

108639323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

108639323 is a deficient number, since it is larger than the sum of its proper divisors (8356885).

108639323 is an equidigital number, since it uses as much as digits as its factorization.

108639323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8356884.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 108639323 is about 10423.0189004914. The cubic root of 108639323 is about 477.1581544956.

The spelling of 108639323 in words is "one hundred eight million, six hundred thirty-nine thousand, three hundred twenty-three".