12377789 has 2 divisors, whose sum is σ = 12377790. Its totient is φ = 12377788.

The previous prime is 12377753. The next prime is 12377791. The reversal of 12377789 is 98777321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7896100 + 4481689 = 2810^2 + 2117^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12377789 is a prime.

Together with 12377791, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12377719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6188894 + 6188895.

It is an arithmetic number, because the mean of its divisors is an integer number (6188895).

Almost surely, 2^12377789 is an apocalyptic number.

It is an amenable number.

12377789 is a deficient number, since it is larger than the sum of its proper divisors (1).

12377789 is an equidigital number, since it uses as much as digits as its factorization.

12377789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 148176, while the sum is 44.

The square root of 12377789 is about 3518.2082087335. The cubic root of 12377789 is about 231.3206257132.

The spelling of 12377789 in words is "twelve million, three hundred seventy-seven thousand, seven hundred eighty-nine".