12643362 has 48 divisors (see below), whose sum is σ = 28936440. Its totient is φ = 3983616.

The previous prime is 12643361. The next prime is 12643363. The reversal of 12643362 is 26334621.

12643362 is a `hidden beast` number, since 12 + 643 + 3 + 6 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (12643361) and next prime (12643363).

It can be written as a sum of positive squares in 4 ways, for example, as 12595401 + 47961 = 3549^2 + 219^2 .

It is not an unprimeable number, because it can be changed into a prime (12643361) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27438 + ... + 27894.

Almost surely, 2^12643362 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12643362, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14468220).

12643362 is an abundant number, since it is smaller than the sum of its proper divisors (16293078).

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

12643362 is a wasteful number, since it uses less digits than its factorization.

12643362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547 (or 544 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 12643362 is about 3555.7505536806. The cubic root of 12643362 is about 232.9633078461.

Adding to 12643362 its reverse (26334621), we get a palindrome (38977983).

The spelling of 12643362 in words is "twelve million, six hundred forty-three thousand, three hundred sixty-two".