27197 has 2 divisors, whose sum is σ = 27198. Its totient is φ = 27196.

The previous prime is 27191. The next prime is 27211. The reversal of 27197 is 79172.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23716 + 3481 = 154^2 + 59^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27197 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13598 + 13599.

It is an arithmetic number, because the mean of its divisors is an integer number (13599).

2²⁷¹⁹⁷ is an apocalyptic number.

It is an amenable number.

27197 is a deficient number, since it is larger than the sum of its proper divisors (1).

27197 is an equidigital number, since it uses as much as digits as its factorization.

27197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 882, while the sum is 26.

The square root of 27197 is about 164.9151296880. The cubic root of 27197 is about 30.0727862257.

The spelling of 27197 in words is "twenty-seven thousand, one hundred ninety-seven".