10002002 has 4 divisors (see below), whose sum is σ = 15003006. Its totient is φ = 5001000.

The previous prime is 10001963. The next prime is 10002007. The reversal of 10002002 is 20020001.

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., 5340721 + 4661281 = 2311^2 + 2159^2 .

10002002 is a modest number, since divided by 2002 gives 10 as remainder.

It is not an unprimeable number, because it can be changed into a prime (10002007) by changing a digit.

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, 2500499 + ... + 2500502.

Almost surely, 2^10002002 is an apocalyptic number.

10002002 is a deficient number, since it is larger than the sum of its proper divisors (5001004).

10002002 is an equidigital number, since it uses as much as digits as its factorization.

10002002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5001003.

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

The square root of 10002002 is about 3162.5941883207. The cubic root of 10002002 is about 215.4578453047.

Adding to 10002002 its reverse (20020001), we get a palindrome (30022003).

Multiplying 10002002 by its reverse (20020001), we get a palindrome (200240090042002).

The spelling of 10002002 in words is "ten million, two thousand, two".