271866 has 16 divisors (see below), whose sum is σ = 621504. Its totient is φ = 77664.

The previous prime is 271861. The next prime is 271867. The reversal of 271866 is 668172.

It is a happy number.

It is a super-2 number, since 2×271866² = 147822243912, which contains 22 as substring.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (271861) by changing a digit.

271866 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3195 + ... + 3278.

It is an arithmetic number, because the mean of its divisors is an integer number (38844).

2²⁷¹⁸⁶⁶ is an apocalyptic number.

271866 is an abundant number, since it is smaller than the sum of its proper divisors (349638).

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

271866 is a wasteful number, since it uses less digits than its factorization.

271866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6485.

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

The square root of 271866 is about 521.4077099545. The cubic root of 271866 is about 64.7815943763.

The spelling of 271866 in words is "two hundred seventy-one thousand, eight hundred sixty-six".