12609603 has 6 divisors (see below), whose sum is σ = 18213884. Its totient is φ = 8406396.

The previous prime is 12609587. The next prime is 12609607. The reversal of 12609603 is 30690621.

It is a happy number.

12609603 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12609603 - 2⁴ = 12609587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12609607) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 700525 + ... + 700542.

Almost surely, 2^12609603 is an apocalyptic number.

12609603 is a deficient number, since it is larger than the sum of its proper divisors (5604281).

12609603 is a wasteful number, since it uses less digits than its factorization.

12609603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401073 (or 1401070 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 12609603 is about 3551.0002816108. Note that the first 3 decimals coincide. The cubic root of 12609603 is about 232.7557781699.

The spelling of 12609603 in words is "twelve million, six hundred nine thousand, six hundred three".