20983108 has 12 divisors (see below), whose sum is σ = 36788752. Its totient is φ = 10472040.

The previous prime is 20983099. The next prime is 20983121. The reversal of 20983108 is 80138902.

It is a self number, because there is not a number n which added to its sum of digits gives 20983108.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2310 + ... + 6877.

Almost surely, 2^20983108 is an apocalyptic number.

It is an amenable number.

20983108 is a deficient number, since it is larger than the sum of its proper divisors (15805644).

20983108 is a wasteful number, since it uses less digits than its factorization.

20983108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9762 (or 9760 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 20983108 is about 4580.7322558735. The cubic root of 20983108 is about 275.8184235929.

The spelling of 20983108 in words is "twenty million, nine hundred eighty-three thousand, one hundred eight".