12003604 has 12 divisors (see below), whose sum is σ = 21114324. Its totient is φ = 5970944.

The previous prime is 12003601. The next prime is 12003613. The reversal of 12003604 is 40630021.

It can be written as a sum of positive squares in 2 ways, for example, as 7551504 + 4452100 = 2748^2 + 2110^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12003601) 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 in 3 ways as a sum of consecutive naturals, for example, 6829 + ... + 8404.

It is an arithmetic number, because the mean of its divisors is an integer number (1759527).

Almost surely, 2^12003604 is an apocalyptic number.

It is an amenable number.

12003604 is a deficient number, since it is larger than the sum of its proper divisors (9110720).

12003604 is a wasteful number, since it uses less digits than its factorization.

12003604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15434 (or 15432 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 12003604 is about 3464.6217686784. The cubic root of 12003604 is about 228.9657659395.

Adding to 12003604 its reverse (40630021), we get a palindrome (52633625).

The spelling of 12003604 in words is "twelve million, three thousand, six hundred four".