271988 has 12 divisors (see below), whose sum is σ = 481572. Its totient is φ = 134400.

The previous prime is 271981. The next prime is 272003. The reversal of 271988 is 889172.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 183184 + 88804 = 428^2 + 298^2 .

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 271988.

It is not an unprimeable number, because it can be changed into a prime (271981) by changing a digit.

271988 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 3 ways as a sum of consecutive naturals, for example, 38 + ... + 738.

It is an arithmetic number, because the mean of its divisors is an integer number (40131).

2²⁷¹⁹⁸⁸ is an apocalyptic number.

It is an amenable number.

271988 is a deficient number, since it is larger than the sum of its proper divisors (209584).

271988 is a wasteful number, since it uses less digits than its factorization.

271988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802 (or 800 counting only the distinct ones).

The product of its digits is 8064, while the sum is 35.

The square root of 271988 is about 521.5246878145. The cubic root of 271988 is about 64.7912831845.

Subtracting from 271988 its sum of digits (35), we obtain a triangular number (271953 = T₇₃₇).

The spelling of 271988 in words is "two hundred seventy-one thousand, nine hundred eighty-eight".