1000287 has 6 divisors (see below), whose sum is σ = 1444872. Its totient is φ = 666852.

The previous prime is 1000273. The next prime is 1000289. The reversal of 1000287 is 7820001.

It is not a de Polignac number, because 1000287 - 2⁷ = 1000159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55563 + ... + 55580.

It is an arithmetic number, because the mean of its divisors is an integer number (240812).

2^1000287 is an apocalyptic number.

1000287 is a deficient number, since it is larger than the sum of its proper divisors (444585).

1000287 is a wasteful number, since it uses less digits than its factorization.

1000287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111149 (or 111146 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 1000287 is about 1000.1434897054. The cubic root of 1000287 is about 100.0095657516.

Adding to 1000287 its reverse (7820001), we get a palindrome (8820288).

The spelling of 1000287 in words is "one million, two hundred eighty-seven", and thus it is an aban number.