12604603 has 4 divisors (see below), whose sum is σ = 13750488. Its totient is φ = 11458720.

The previous prime is 12604597. The next prime is 12604639. The reversal of 12604603 is 30640621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30640621 = 11 ⋅2785511.

It is a cyclic number.

It is not a de Polignac number, because 12604603 - 2²¹ = 10507451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12604303) 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, 572926 + ... + 572947.

It is an arithmetic number, because the mean of its divisors is an integer number (3437622).

Almost surely, 2^12604603 is an apocalyptic number.

12604603 is a deficient number, since it is larger than the sum of its proper divisors (1145885).

12604603 is a wasteful number, since it uses less digits than its factorization.

12604603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145884.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 12604603 is about 3550.2961848274. The cubic root of 12604603 is about 232.7250097482.

The spelling of 12604603 in words is "twelve million, six hundred four thousand, six hundred three".