12006623 has 2 divisors, whose sum is σ = 12006624. Its totient is φ = 12006622.

The previous prime is 12006619. The next prime is 12006649. The reversal of 12006623 is 32660021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12006623 - 2² = 12006619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12006595 and 12006604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12006653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6003311 + 6003312.

It is an arithmetic number, because the mean of its divisors is an integer number (6003312).

Almost surely, 2^12006623 is an apocalyptic number.

12006623 is a deficient number, since it is larger than the sum of its proper divisors (1).

12006623 is an equidigital number, since it uses as much as digits as its factorization.

12006623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 12006623 is about 3465.0574309815. The cubic root of 12006623 is about 228.9849598889.

Adding to 12006623 its reverse (32660021), we get a palindrome (44666644).

The spelling of 12006623 in words is "twelve million, six thousand, six hundred twenty-three".