197287 has 4 divisors (see below), whose sum is σ = 204120. Its totient is φ = 190456.

The previous prime is 197279. The next prime is 197293. The reversal of 197287 is 782791.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 197287 - 2³ = 197279 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3373 + ... + 3430.

It is an arithmetic number, because the mean of its divisors is an integer number (51030).

2¹⁹⁷²⁸⁷ is an apocalyptic number.

197287 is a deficient number, since it is larger than the sum of its proper divisors (6833).

197287 is an equidigital number, since it uses as much as digits as its factorization.

197287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6832.

The product of its digits is 7056, while the sum is 34.

The square root of 197287 is about 444.1700124952. The cubic root of 197287 is about 58.2147213422.

It can be divided in two parts, 197 and 287, that added together give a palindrome (484).

The spelling of 197287 in words is "one hundred ninety-seven thousand, two hundred eighty-seven".