197217 has 12 divisors (see below), whose sum is σ = 301860. Its totient is φ = 123648.

The previous prime is 197207. The next prime is 197221. The reversal of 197217 is 712791.

197217 is nontrivially palindromic in base 12.

It can be written as a sum of positive squares in 2 ways, for example, as 156816 + 40401 = 396^2 + 201^2 .

It is not a de Polignac number, because 197217 - 2⁷ = 197089 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 492 + ... + 797.

It is an arithmetic number, because the mean of its divisors is an integer number (25155).

2¹⁹⁷²¹⁷ is an apocalyptic number.

197217 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

197217 is a deficient number, since it is larger than the sum of its proper divisors (104643).

197217 is a wasteful number, since it uses less digits than its factorization.

197217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312 (or 1309 counting only the distinct ones).

The product of its digits is 882, while the sum is 27.

The square root of 197217 is about 444.0912068483. The cubic root of 197217 is about 58.2078354137.

It can be divided in two parts, 197 and 217, that added together give a palindrome (414).

The spelling of 197217 in words is "one hundred ninety-seven thousand, two hundred seventeen".