12603996 has 18 divisors (see below), whose sum is σ = 31860192. Its totient is φ = 4201320.

The previous prime is 12603967. The next prime is 12604001. The reversal of 12603996 is 69930621.

12603996 is a `hidden beast` number, since 1 + 260 + 399 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 350111 = 12603996 / (1 + 2 + 6 + 0 + 3 + 9 + 9 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 12603996.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 175020 + ... + 175091.

Almost surely, 2^12603996 is an apocalyptic number.

It is an amenable number.

12603996 is an abundant number, since it is smaller than the sum of its proper divisors (19256196).

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

12603996 is a wasteful number, since it uses less digits than its factorization.

12603996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350121 (or 350116 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 12603996 is about 3550.2106979727. The cubic root of 12603996 is about 232.7212739080.

The spelling of 12603996 in words is "twelve million, six hundred three thousand, nine hundred ninety-six".