287271 has 12 divisors (see below), whose sum is σ = 422760. Its totient is φ = 187920.

The previous prime is 287269. The next prime is 287279. The reversal of 287271 is 172782.

It is not a de Polignac number, because 287271 - 2¹ = 287269 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

287271 is a lucky 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 287271.

It is not an unprimeable number, because it can be changed into a prime (287279) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 261 + ... + 801.

It is an arithmetic number, because the mean of its divisors is an integer number (35230).

2²⁸⁷²⁷¹ is an apocalyptic number.

287271 is a deficient number, since it is larger than the sum of its proper divisors (135489).

287271 is a wasteful number, since it uses less digits than its factorization.

287271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606 (or 603 counting only the distinct ones).

The product of its digits is 1568, while the sum is 27.

The square root of 287271 is about 535.9766785971. The cubic root of 287271 is about 65.9827778756.

It can be divided in two parts, 287 and 271, that multiplied together give a palindrome (77777).

The spelling of 287271 in words is "two hundred eighty-seven thousand, two hundred seventy-one".