271668 has 12 divisors (see below), whose sum is σ = 633920. Its totient is φ = 90552.

The previous prime is 271657. The next prime is 271693. The reversal of 271668 is 866172.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

271668 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 in 3 ways as a sum of consecutive naturals, for example, 11308 + ... + 11331.

2²⁷¹⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

271668 is an abundant number, since it is smaller than the sum of its proper divisors (362252).

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

271668 is a wasteful number, since it uses less digits than its factorization.

271668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22646 (or 22644 counting only the distinct ones).

The product of its digits is 4032, while the sum is 30.

The square root of 271668 is about 521.2178047611. The cubic root of 271668 is about 64.7658637457.

It can be divided in two parts, 271 and 668, that added together give a palindrome (939).

The spelling of 271668 in words is "two hundred seventy-one thousand, six hundred sixty-eight".