287055 has 12 divisors (see below), whose sum is σ = 497640. Its totient is φ = 153072.

The previous prime is 287047. The next prime is 287057. The reversal of 287055 is 550782.

It is a happy number.

It is not a de Polignac number, because 287055 - 2³ = 287047 is a prime.

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 287055.

It is not an unprimeable number, because it can be changed into a prime (287057) 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, 3145 + ... + 3234.

It is an arithmetic number, because the mean of its divisors is an integer number (41470).

2²⁸⁷⁰⁵⁵ is an apocalyptic number.

287055 is a deficient number, since it is larger than the sum of its proper divisors (210585).

287055 is a wasteful number, since it uses less digits than its factorization.

287055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6390 (or 6387 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 287055 is about 535.7751394008. The cubic root of 287055 is about 65.9662361738.

The spelling of 287055 in words is "two hundred eighty-seven thousand, fifty-five".