271897 has 2 divisors, whose sum is σ = 271898. Its totient is φ = 271896.

The previous prime is 271879. The next prime is 271903. The reversal of 271897 is 798172.

Together with previous prime (271879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145161 + 126736 = 381^2 + 356^2 .

It is a cyclic number.

It is not a de Polignac number, because 271897 - 2⁷ = 271769 is a prime.

271897 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (271807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135948 + 135949.

It is an arithmetic number, because the mean of its divisors is an integer number (135949).

2²⁷¹⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

271897 is a deficient number, since it is larger than the sum of its proper divisors (1).

271897 is an equidigital number, since it uses as much as digits as its factorization.

271897 is an odious number, because the sum of its binary digits is odd.

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

The square root of 271897 is about 521.4374363239. The cubic root of 271897 is about 64.7840565613.

The spelling of 271897 in words is "two hundred seventy-one thousand, eight hundred ninety-seven".