12005789 has 2 divisors, whose sum is σ = 12005790. Its totient is φ = 12005788.

The previous prime is 12005779. The next prime is 12005801. The reversal of 12005789 is 98750021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8508889 + 3496900 = 2917^2 + 1870^2 .

It is an emirp because it is prime and its reverse (98750021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12005789 - 2²⁰ = 10957213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12005779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6002894 + 6002895.

It is an arithmetic number, because the mean of its divisors is an integer number (6002895).

Almost surely, 2^12005789 is an apocalyptic number.

It is an amenable number.

12005789 is a deficient number, since it is larger than the sum of its proper divisors (1).

12005789 is an equidigital number, since it uses as much as digits as its factorization.

12005789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 12005789 is about 3464.9370845659. The cubic root of 12005789 is about 228.9796578741.

The spelling of 12005789 in words is "twelve million, five thousand, seven hundred eighty-nine".