108405712 has 40 divisors (see below), whose sum is σ = 218736000. Its totient is φ = 51983232.

The previous prime is 108405701. The next prime is 108405721. The reversal of 108405712 is 217504801.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76789 + ... + 78187.

It is an arithmetic number, because the mean of its divisors is an integer number (5468400).

Almost surely, 2^108405712 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 108405712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109368000).

108405712 is an abundant number, since it is smaller than the sum of its proper divisors (110330288).

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

108405712 is a wasteful number, since it uses less digits than its factorization.

108405712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603 (or 1597 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 108405712 is about 10411.8063754567. The cubic root of 108405712 is about 476.8158923355.

The spelling of 108405712 in words is "one hundred eight million, four hundred five thousand, seven hundred twelve".