12327618 has 32 divisors (see below), whose sum is σ = 27483840. Its totient is φ = 3663360.

The previous prime is 12327617. The next prime is 12327619. The reversal of 12327618 is 81672321.

It is an interprime number because it is at equal distance from previous prime (12327617) and next prime (12327619).

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12327613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1243 + ... + 5118.

It is an arithmetic number, because the mean of its divisors is an integer number (858870).

Almost surely, 2^12327618 is an apocalyptic number.

12327618 is an abundant number, since it is smaller than the sum of its proper divisors (15156222).

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

12327618 is a wasteful number, since it uses less digits than its factorization.

12327618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6402.

The product of its digits is 4032, while the sum is 30.

The square root of 12327618 is about 3511.0707768429. The cubic root of 12327618 is about 231.0076645196.

Adding to 12327618 its reverse (81672321), we get a palindrome (93999939).

The spelling of 12327618 in words is "twelve million, three hundred twenty-seven thousand, six hundred eighteen".