197912 has 32 divisors (see below), whose sum is σ = 438480. Its totient is φ = 82560.

The previous prime is 197909. The next prime is 197921. The reversal of 197912 is 219791.

It is a congruent number.

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, 1058 + ... + 1230.

2¹⁹⁷⁹¹² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219240).

197912 is an abundant number, since it is smaller than the sum of its proper divisors (240568).

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

197912 is a wasteful number, since it uses less digits than its factorization.

197912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203 (or 199 counting only the distinct ones).

The product of its digits is 1134, while the sum is 29.

The square root of 197912 is about 444.8730155898. The cubic root of 197912 is about 58.2761307727.

It can be divided in two parts, 1979 and 12, that added together give a palindrome (1991).

The spelling of 197912 in words is "one hundred ninety-seven thousand, nine hundred twelve".