108920856 has 64 divisors (see below), whose sum is σ = 306662400. Its totient is φ = 31939200.

The previous prime is 108920843. The next prime is 108920857. The reversal of 108920856 is 658029801.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108920857) 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, 1530 + ... + 14838.

It is an arithmetic number, because the mean of its divisors is an integer number (4791600).

Almost surely, 2^108920856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 108920856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153331200).

108920856 is an abundant number, since it is smaller than the sum of its proper divisors (197741544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

108920856 is a wasteful number, since it uses less digits than its factorization.

108920856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13360 (or 13356 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 108920856 is about 10436.5155104565. The cubic root of 108920856 is about 477.5699755823.

It can be divided in two parts, 1089 and 20856, that added together give a triangular number (21945 = T₂₀₉).

The spelling of 108920856 in words is "one hundred eight million, nine hundred twenty thousand, eight hundred fifty-six".