108881636 has 24 divisors (see below), whose sum is σ = 193622520. Its totient is φ = 53568000.

The previous prime is 108881629. The next prime is 108881681. The reversal of 108881636 is 636188801.

It can be written as a sum of positive squares in 4 ways, for example, as 4024036 + 104857600 = 2006^2 + 10240^2 .

It is a junction number, because it is equal to n+sod(n) for n = 108881593 and 108881602.

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, 72380 + ... + 73868.

It is an arithmetic number, because the mean of its divisors is an integer number (8067605).

Almost surely, 2^108881636 is an apocalyptic number.

It is an amenable number.

108881636 is a deficient number, since it is larger than the sum of its proper divisors (84740884).

108881636 is a wasteful number, since it uses less digits than its factorization.

108881636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1775 (or 1773 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 108881636 is about 10434.6363616563. The cubic root of 108881636 is about 477.5126478928.

The spelling of 108881636 in words is "one hundred eight million, eight hundred eighty-one thousand, six hundred thirty-six".