12200789 has 2 divisors, whose sum is σ = 12200790. Its totient is φ = 12200788.

The previous prime is 12200779. The next prime is 12200807. The reversal of 12200789 is 98700221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7102225 + 5098564 = 2665^2 + 2258^2 .

It is an emirp because it is prime and its reverse (98700221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12200789 - 2⁸ = 12200533 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12200719) 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, 6100394 + 6100395.

It is an arithmetic number, because the mean of its divisors is an integer number (6100395).

Almost surely, 2^12200789 is an apocalyptic number.

It is an amenable number.

12200789 is a deficient number, since it is larger than the sum of its proper divisors (1).

12200789 is an equidigital number, since it uses as much as digits as its factorization.

12200789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 12200789 is about 3492.9627825100. The cubic root of 12200789 is about 230.2127143646.

The spelling of 12200789 in words is "twelve million, two hundred thousand, seven hundred eighty-nine".