108697728 has 64 divisors (see below), whose sum is σ = 305730720. Its totient is φ = 34099200.

The previous prime is 108697723. The next prime is 108697739. The reversal of 108697728 is 827796801.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (108697723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1798 + ... + 14853.

Almost surely, 2^108697728 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 108697728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152865360).

108697728 is an abundant number, since it is smaller than the sum of its proper divisors (197032992).

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

108697728 is a wasteful number, since it uses less digits than its factorization.

108697728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16685 (or 16673 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 48.

The square root of 108697728 is about 10425.8202555003. The cubic root of 108697728 is about 477.2436466503.

The spelling of 108697728 in words is "one hundred eight million, six hundred ninety-seven thousand, seven hundred twenty-eight".