12323639 has 2 divisors, whose sum is σ = 12323640. Its totient is φ = 12323638.

The previous prime is 12323621. The next prime is 12323651. The reversal of 12323639 is 93632321.

It is a strong prime.

It is an emirp because it is prime and its reverse (93632321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12323639 - 2⁸ = 12323383 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12323659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6161819 + 6161820.

It is an arithmetic number, because the mean of its divisors is an integer number (6161820).

Almost surely, 2^12323639 is an apocalyptic number.

12323639 is a deficient number, since it is larger than the sum of its proper divisors (1).

12323639 is an equidigital number, since it uses as much as digits as its factorization.

12323639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 29.

The square root of 12323639 is about 3510.5040948559. The cubic root of 12323639 is about 230.9828076384.

The spelling of 12323639 in words is "twelve million, three hundred twenty-three thousand, six hundred thirty-nine".