1004287 has 2 divisors, whose sum is σ = 1004288. Its totient is φ = 1004286.

The previous prime is 1004279. The next prime is 1004293. The reversal of 1004287 is 7824001.

It is a strong prime.

It is an emirp because it is prime and its reverse (7824001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1004287 - 2³ = 1004279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1004687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502143 + 502144.

It is an arithmetic number, because the mean of its divisors is an integer number (502144).

2^1004287 is an apocalyptic number.

1004287 is a deficient number, since it is larger than the sum of its proper divisors (1).

1004287 is an equidigital number, since it uses as much as digits as its factorization.

1004287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 1004287 is about 1002.1412076150. The cubic root of 1004287 is about 100.1426962809.

Adding to 1004287 its reverse (7824001), we get a palindrome (8828288).

The spelling of 1004287 in words is "one million, four thousand, two hundred eighty-seven".