108863985 has 16 divisors (see below), whose sum is σ = 177889536. Its totient is φ = 56825088.

The previous prime is 108863983. The next prime is 108864001. The reversal of 108863985 is 589368801.

It is not a de Polignac number, because 108863985 - 2¹ = 108863983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (108863981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76504 + ... + 77913.

It is an arithmetic number, because the mean of its divisors is an integer number (11118096).

Almost surely, 2^108863985 is an apocalyptic number.

108863985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

108863985 is a deficient number, since it is larger than the sum of its proper divisors (69025551).

108863985 is a wasteful number, since it uses less digits than its factorization.

108863985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154472.

The product of its (nonzero) digits is 414720, while the sum is 48.

The square root of 108863985 is about 10433.7905384381. The cubic root of 108863985 is about 477.4868430171.

The spelling of 108863985 in words is "one hundred eight million, eight hundred sixty-three thousand, nine hundred eighty-five".