12916386 has 48 divisors (see below), whose sum is σ = 33381504. Its totient is φ = 3529152.

The previous prime is 12916373. The next prime is 12916417. The reversal of 12916386 is 68361921.

12916386 is a `hidden beast` number, since 12 + 9 + 1 + 638 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12916386.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 670 + ... + 5126.

It is an arithmetic number, because the mean of its divisors is an integer number (695448).

Almost surely, 2^12916386 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12916386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16690752).

12916386 is an abundant number, since it is smaller than the sum of its proper divisors (20465118).

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

12916386 is a wasteful number, since it uses less digits than its factorization.

12916386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4495 (or 4492 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 12916386 is about 3593.9373951142. The cubic root of 12916386 is about 234.6282699998.

The spelling of 12916386 in words is "twelve million, nine hundred sixteen thousand, three hundred eighty-six".