197189568 has 42 divisors (see below), whose sum is σ = 565209944. Its totient is φ = 65729664.

The previous prime is 197189527. The next prime is 197189591. The reversal of 197189568 is 865981791.

197189568 is a `hidden beast` number, since 1 + 9 + 71 + 8 + 9 + 568 = 666.

197189568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 170596 + ... + 171747.

Almost surely, 2^197189568 is an apocalyptic number.

197189568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

197189568 is an abundant number, since it is smaller than the sum of its proper divisors (368020376).

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

197189568 is a wasteful number, since it uses less digits than its factorization.

197189568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342361 (or 342348 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 54.

The square root of 197189568 is about 14042.4203042068. The cubic root of 197189568 is about 582.0513647230.

The spelling of 197189568 in words is "one hundred ninety-seven million, one hundred eighty-nine thousand, five hundred sixty-eight".