12316636 has 24 divisors (see below), whose sum is σ = 24025680. Its totient is φ = 5490432.

The previous prime is 12316631. The next prime is 12316639. The reversal of 12316636 is 63661321.

12316636 = T₂₈₆₄ + T₂₈₆₅ + T₂₈₆₆.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12316631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3475 + ... + 6058.

It is an arithmetic number, because the mean of its divisors is an integer number (1001070).

Almost surely, 2^12316636 is an apocalyptic number.

12316636 is the 2866-th centered triangular number.

It is an amenable number.

12316636 is a deficient number, since it is larger than the sum of its proper divisors (11709044).

12316636 is a wasteful number, since it uses less digits than its factorization.

12316636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9573 (or 9571 counting only the distinct ones).

The product of its digits is 3888, while the sum is 28.

The square root of 12316636 is about 3509.5065180165. The cubic root of 12316636 is about 230.9390467790.

Adding to 12316636 its reverse (63661321), we get a palindrome (75977957).

The spelling of 12316636 in words is "twelve million, three hundred sixteen thousand, six hundred thirty-six".