12343636 has 12 divisors (see below), whose sum is σ = 21667828. Its totient is φ = 6152832.

The previous prime is 12343631. The next prime is 12343637. The reversal of 12343636 is 63634321.

12343636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2421136 + 9922500 = 1556^2 + 3150^2 .

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12343631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3231 + ... + 5926.

Almost surely, 2^12343636 is an apocalyptic number.

It is an amenable number.

12343636 is a deficient number, since it is larger than the sum of its proper divisors (9324192).

12343636 is a wasteful number, since it uses less digits than its factorization.

12343636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9498 (or 9496 counting only the distinct ones).

The product of its digits is 7776, while the sum is 28.

The square root of 12343636 is about 3513.3511068494. The cubic root of 12343636 is about 231.1076751694.

Adding to 12343636 its reverse (63634321), we get a palindrome (75977957).

The spelling of 12343636 in words is "twelve million, three hundred forty-three thousand, six hundred thirty-six".