1004002 has 4 divisors (see below), whose sum is σ = 1506006. Its totient is φ = 502000.

The previous prime is 1003963. The next prime is 1004027. The reversal of 1004002 is 2004001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 772641 + 231361 = 879^2 + 481^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250999 + ... + 251002.

2^1004002 is an apocalyptic number.

1004002 is a deficient number, since it is larger than the sum of its proper divisors (502004).

1004002 is an equidigital number, since it uses as much as digits as its factorization.

1004002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502003.

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

The square root of 1004002 is about 1001.9990019955. Note that the first 3 decimals coincide. The cubic root of 1004002 is about 100.1332224390.

Adding to 1004002 its reverse (2004001), we get a palindrome (3008003).

Subtracting 1004002 from its reverse (2004001), we obtain a palindrome (999999).

The spelling of 1004002 in words is "one million, four thousand, two".