1004285 has 8 divisors (see below), whose sum is σ = 1210680. Its totient is φ = 799744.

The previous prime is 1004279. The next prime is 1004287. The reversal of 1004285 is 5824001.

It can be written as a sum of positive squares in 4 ways, for example, as 8281 + 996004 = 91^2 + 998^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1004285 - 2⁶ = 1004221 is a prime.

It is a super-2 number, since 2×1004285² = 2017176722450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1481 + ... + 2049.

It is an arithmetic number, because the mean of its divisors is an integer number (151335).

2^1004285 is an apocalyptic number.

It is an amenable number.

1004285 is a deficient number, since it is larger than the sum of its proper divisors (206395).

1004285 is an equidigital number, since it uses as much as digits as its factorization.

1004285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1004285 is about 1002.1402097511. The cubic root of 1004285 is about 100.1426298040.

Adding to 1004285 its reverse (5824001), we get a palindrome (6828286).

The spelling of 1004285 in words is "one million, four thousand, two hundred eighty-five".