197880 has 64 divisors (see below), whose sum is σ = 635040. Its totient is φ = 49152.

The previous prime is 197837. The next prime is 197887. The reversal of 197880 is 88791.

197880 = T₁₄₄ + T₁₄₅ + ... + T₁₆₀.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1992 + ... + 2088.

2¹⁹⁷⁸⁸⁰ is an apocalyptic number.

197880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317520).

197880 is an abundant number, since it is smaller than the sum of its proper divisors (437160).

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

197880 is a wasteful number, since it uses less digits than its factorization.

197880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 124 counting only the distinct ones).

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

The square root of 197880 is about 444.8370488168. The cubic root of 197880 is about 58.2729897526.

The spelling of 197880 in words is "one hundred ninety-seven thousand, eight hundred eighty".