287002 has 4 divisors (see below), whose sum is σ = 430506. Its totient is φ = 143500.

The previous prime is 286999. The next prime is 287003. The reversal of 287002 is 200782.

287002 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200782 = 2 ⋅100391.

It can be written as a sum of positive squares in only one way, i.e., 281961 + 5041 = 531^2 + 71^2 .

It is not an unprimeable number, because it can be changed into a prime (287003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71749 + ... + 71752.

2²⁸⁷⁰⁰² is an apocalyptic number.

287002 is a deficient number, since it is larger than the sum of its proper divisors (143504).

287002 is a wasteful number, since it uses less digits than its factorization.

287002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143503.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 287002 is about 535.7256760694. The cubic root of 287002 is about 65.9621760625.

Adding to 287002 its reverse (200782), we get a palindrome (487784).

The spelling of 287002 in words is "two hundred eighty-seven thousand, two".