287373 has 4 divisors (see below), whose sum is σ = 383168. Its totient is φ = 191580.

The previous prime is 287347. The next prime is 287383. The reversal of 287373 is 373782.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 287373 - 2⁵ = 287341 is a prime.

It is a super-2 number, since 2×287373² = 165166482258, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

287373 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 287373.

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 287373.

It is not an unprimeable number, because it can be changed into a prime (287333) 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, 47893 + ... + 47898.

It is an arithmetic number, because the mean of its divisors is an integer number (95792).

2²⁸⁷³⁷³ is an apocalyptic number.

It is an amenable number.

287373 is a deficient number, since it is larger than the sum of its proper divisors (95795).

287373 is an equidigital number, since it uses as much as digits as its factorization.

287373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95794.

The product of its digits is 7056, while the sum is 30.

The square root of 287373 is about 536.0718235461. The cubic root of 287373 is about 65.9905863525.

The spelling of 287373 in words is "two hundred eighty-seven thousand, three hundred seventy-three".