1002004 has 6 divisors (see below), whose sum is σ = 1753514. Its totient is φ = 501000.

The previous prime is 1001989. The next prime is 1002017. The reversal of 1002004 is 4002001.

It can be written as a sum of positive squares in only one way, i.e., 980100 + 21904 = 990^2 + 148^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125247 + ... + 125254.

2^1002004 is an apocalyptic number.

It is an amenable number.

1002004 is a deficient number, since it is larger than the sum of its proper divisors (751510).

1002004 is a wasteful number, since it uses less digits than its factorization.

1002004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250505 (or 250503 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 1002004 is about 1001.0014985004. The cubic root of 1002004 is about 100.0667554272.

Adding to 1002004 its reverse (4002001), we get a palindrome (5004005).

The spelling of 1002004 in words is "one million, two thousand, four".