12039623 has 2 divisors, whose sum is σ = 12039624. Its totient is φ = 12039622.

The previous prime is 12039617. The next prime is 12039641. The reversal of 12039623 is 32693021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12039623 - 2⁴ = 12039607 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12039592 and 12039601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12039323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6019811 + 6019812.

It is an arithmetic number, because the mean of its divisors is an integer number (6019812).

Almost surely, 2^12039623 is an apocalyptic number.

12039623 is a deficient number, since it is larger than the sum of its proper divisors (1).

12039623 is an equidigital number, since it uses as much as digits as its factorization.

12039623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 12039623 is about 3469.8159893574. The cubic root of 12039623 is about 229.1945550780.

The spelling of 12039623 in words is "twelve million, thirty-nine thousand, six hundred twenty-three".