1000002002 has 4 divisors (see below), whose sum is σ = 1500003006. Its totient is φ = 500001000.

The previous prime is 1000001969. The next prime is 1000002043. The reversal of 1000002002 is 2002000001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2002000001 = 193 ⋅10373057.

It can be written as a sum of positive squares in only one way, i.e., 574033681 + 425968321 = 23959^2 + 20639^2 .

1000002002 is a modest number, since divided by 2002 gives 1000 as remainder.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250000499 + ... + 250000502.

Almost surely, 2^1000002002 is an apocalyptic number.

1000002002 is a deficient number, since it is larger than the sum of its proper divisors (500001004).

1000002002 is an equidigital number, since it uses as much as digits as its factorization.

1000002002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500001003.

The product of its (nonzero) digits is 4, while the sum is 5.

The square root of 1000002002 is about 31622.8082560673. The cubic root of 1000002002 is about 1000.0006673329. Note that the first 3 decimals are identical.

Adding to 1000002002 its reverse (2002000001), we get a palindrome (3002002003).

The spelling of 1000002002 in words is "one billion, two thousand, two".