12339623 has 2 divisors, whose sum is σ = 12339624. Its totient is φ = 12339622.

The previous prime is 12339617. The next prime is 12339631. The reversal of 12339623 is 32693321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12339623 - 2⁶ = 12339559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12339653) 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, 6169811 + 6169812.

It is an arithmetic number, because the mean of its divisors is an integer number (6169812).

Almost surely, 2^12339623 is an apocalyptic number.

12339623 is a deficient number, since it is larger than the sum of its proper divisors (1).

12339623 is an equidigital number, since it uses as much as digits as its factorization.

12339623 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 12339623 is about 3512.7799532564. The cubic root of 12339623 is about 231.0826275626.

The spelling of 12339623 in words is "twelve million, three hundred thirty-nine thousand, six hundred twenty-three".