12993636 has 24 divisors (see below), whose sum is σ = 30409120. Its totient is φ = 4318272.

The previous prime is 12993613. The next prime is 12993641. The reversal of 12993636 is 63639921.

It is a junction number, because it is equal to n+sod(n) for n = 12993594 and 12993603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3120 + ... + 5976.

Almost surely, 2^12993636 is an apocalyptic number.

It is an amenable number.

12993636 is an abundant number, since it is smaller than the sum of its proper divisors (17415484).

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

12993636 is a wasteful number, since it uses less digits than its factorization.

12993636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3243 (or 3241 counting only the distinct ones).

The product of its digits is 52488, while the sum is 39.

The square root of 12993636 is about 3604.6686394175. The cubic root of 12993636 is about 235.0950935505.

The spelling of 12993636 in words is "twelve million, nine hundred ninety-three thousand, six hundred thirty-six".