287343 has 12 divisors (see below), whose sum is σ = 474448. Its totient is φ = 164160.

The previous prime is 287341. The next prime is 287347. The reversal of 287343 is 343782.

It is not a de Polignac number, because 287343 - 2¹ = 287341 is a prime.

It is a Duffinian 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 287343.

It is not an unprimeable number, because it can be changed into a prime (287341) 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, 2218 + ... + 2343.

2²⁸⁷³⁴³ is an apocalyptic number.

287343 is a deficient number, since it is larger than the sum of its proper divisors (187105).

287343 is a wasteful number, since it uses less digits than its factorization.

287343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4574 (or 4571 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 287343 is about 536.0438414906. The cubic root of 287343 is about 65.9882899335.

It can be divided in two parts, 2873 and 43, that added together give a square (2916 = 54²).

The spelling of 287343 in words is "two hundred eighty-seven thousand, three hundred forty-three".