12620789 has 2 divisors, whose sum is σ = 12620790. Its totient is φ = 12620788.

The previous prime is 12620711. The next prime is 12620827. The reversal of 12620789 is 98702621.

It is a happy number.

12620789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6980164 + 5640625 = 2642^2 + 2375^2 .

It is a cyclic number.

It is not a de Polignac number, because 12620789 - 2⁸ = 12620533 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 (12629789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6310394 + 6310395.

It is an arithmetic number, because the mean of its divisors is an integer number (6310395).

Almost surely, 2^12620789 is an apocalyptic number.

It is an amenable number.

12620789 is a deficient number, since it is larger than the sum of its proper divisors (1).

12620789 is an equidigital number, since it uses as much as digits as its factorization.

12620789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 12620789 is about 3552.5749816154. The cubic root of 12620789 is about 232.8245838420.

The spelling of 12620789 in words is "twelve million, six hundred twenty thousand, seven hundred eighty-nine".