271864 has 16 divisors (see below), whose sum is σ = 540000. Its totient is φ = 127872.

The previous prime is 271861. The next prime is 271867. The reversal of 271864 is 468172.

It is an interprime number because it is at equal distance from previous prime (271861) and next prime (271867).

It is a congruent number.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 864 + ... + 1135.

It is an arithmetic number, because the mean of its divisors is an integer number (33750).

2²⁷¹⁸⁶⁴ is an apocalyptic number.

It is an amenable number.

271864 is a deficient number, since it is larger than the sum of its proper divisors (268136).

271864 is a wasteful number, since it uses less digits than its factorization.

271864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2022 (or 2018 counting only the distinct ones).

The product of its digits is 2688, while the sum is 28.

The square root of 271864 is about 521.4057920660. The cubic root of 271864 is about 64.7814355193.

It can be divided in two parts, 27 and 1864, that added together give a triangular number (1891 = T₆₁).

The spelling of 271864 in words is "two hundred seventy-one thousand, eight hundred sixty-four".