12423623 has 2 divisors, whose sum is σ = 12423624. Its totient is φ = 12423622.

The previous prime is 12423613. The next prime is 12423643. The reversal of 12423623 is 32632421.

It is a weak prime.

It is an emirp because it is prime and its reverse (32632421) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12423623 is a prime.

It is a super-2 number, since 2×12423623² = 308692816892258, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12423613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6211811 + 6211812.

It is an arithmetic number, because the mean of its divisors is an integer number (6211812).

Almost surely, 2^12423623 is an apocalyptic number.

12423623 is a deficient number, since it is larger than the sum of its proper divisors (1).

12423623 is an equidigital number, since it uses as much as digits as its factorization.

12423623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 23.

The square root of 12423623 is about 3524.7160169296. The cubic root of 12423623 is about 231.6057948403.

The spelling of 12423623 in words is "twelve million, four hundred twenty-three thousand, six hundred twenty-three".