108690208 has 48 divisors (see below), whose sum is σ = 236779200. Its totient is φ = 48697600.

The previous prime is 108690199. The next prime is 108690229. The reversal of 108690208 is 802096801.

It is a super-2 number, since 2×108690208² = 23627122630166528, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22818 + ... + 27166.

It is an arithmetic number, because the mean of its divisors is an integer number (4932900).

Almost surely, 2^108690208 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 108690208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118389600).

108690208 is an abundant number, since it is smaller than the sum of its proper divisors (128088992).

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

108690208 is a wasteful number, since it uses less digits than its factorization.

108690208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4441 (or 4433 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 108690208 is about 10425.4596061756. The cubic root of 108690208 is about 477.2326407319.

The spelling of 108690208 in words is "one hundred eight million, six hundred ninety thousand, two hundred eight".