197966188 has 12 divisors (see below), whose sum is σ = 395932432. Its totient is φ = 84842640.

The previous prime is 197966147. The next prime is 197966239. The reversal of 197966188 is 881669791.

197966188 is an admirable number.

It is a super-2 number, since 2×197966188² = 78381223182502688, which contains 22 as substring.

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, 3535083 + ... + 3535138.

Almost surely, 2^197966188 is an apocalyptic number.

It is an amenable number.

197966188 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

197966188 is a wasteful number, since it uses less digits than its factorization.

197966188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7070232 (or 7070230 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 55.

The square root of 197966188 is about 14070.0457710698. The cubic root of 197966188 is about 582.8144892557.

The spelling of 197966188 in words is "one hundred ninety-seven million, nine hundred sixty-six thousand, one hundred eighty-eight".