197985108 has 12 divisors (see below), whose sum is σ = 461965280. Its totient is φ = 65995032.

The previous prime is 197985107. The next prime is 197985131. The reversal of 197985108 is 801589791.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197985107) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8249368 + ... + 8249391.

Almost surely, 2^197985108 is an apocalyptic number.

It is an amenable number.

197985108 is an abundant number, since it is smaller than the sum of its proper divisors (263980172).

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

197985108 is a wasteful number, since it uses less digits than its factorization.

197985108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16498766 (or 16498764 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 48.

The square root of 197985108 is about 14070.7181053420. The cubic root of 197985108 is about 582.8330555556.

The spelling of 197985108 in words is "one hundred ninety-seven million, nine hundred eighty-five thousand, one hundred eight".