197808 has 40 divisors (see below), whose sum is σ = 552048. Its totient is φ = 60672.

The previous prime is 197807. The next prime is 197831. The reversal of 197808 is 808791.

It is not an unprimeable number, because it can be changed into a prime (197803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 466 + ... + 782.

2¹⁹⁷⁸⁰⁸ 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 197808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276024).

197808 is an abundant number, since it is smaller than the sum of its proper divisors (354240).

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

197808 is a wasteful number, since it uses less digits than its factorization.

197808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 33.

The square root of 197808 is about 444.7561129428. The cubic root of 197808 is about 58.2659212191.

The spelling of 197808 in words is "one hundred ninety-seven thousand, eight hundred eight".