12003606 has 16 divisors (see below), whose sum is σ = 26674800. Its totient is φ = 4001184.

The previous prime is 12003601. The next prime is 12003613. The reversal of 12003606 is 60630021.

It is a happy number.

12003606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111091 + ... + 111198.

It is an arithmetic number, because the mean of its divisors is an integer number (1667175).

Almost surely, 2^12003606 is an apocalyptic number.

12003606 is an abundant number, since it is smaller than the sum of its proper divisors (14671194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12003606 is a wasteful number, since it uses less digits than its factorization.

12003606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222300 (or 222294 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 12003606 is about 3464.6220573101. The cubic root of 12003606 is about 228.9657786560.

Adding to 12003606 its reverse (60630021), we get a palindrome (72633627).

The spelling of 12003606 in words is "twelve million, three thousand, six hundred six".