12317646 has 32 divisors (see below), whose sum is σ = 27042048. Its totient is φ = 3709440.

The previous prime is 12317623. The next prime is 12317647. The reversal of 12317646 is 64671321.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12317647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12255 + ... + 13221.

It is an arithmetic number, because the mean of its divisors is an integer number (845064).

Almost surely, 2^12317646 is an apocalyptic number.

12317646 is an abundant number, since it is smaller than the sum of its proper divisors (14724402).

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

12317646 is a wasteful number, since it uses less digits than its factorization.

12317646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176.

The product of its digits is 6048, while the sum is 30.

The square root of 12317646 is about 3509.6504099411. The cubic root of 12317646 is about 230.9453591645.

Adding to 12317646 its reverse (64671321), we get a palindrome (76988967).

The spelling of 12317646 in words is "twelve million, three hundred seventeen thousand, six hundred forty-six".