12893389 has 2 divisors, whose sum is σ = 12893390. Its totient is φ = 12893388.

The previous prime is 12893351. The next prime is 12893401. The reversal of 12893389 is 98339821.

It is a happy number.

12893389 is digitally balanced in base 3, 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., 10673289 + 2220100 = 3267^2 + 1490^2 .

It is a cyclic number.

It is not a de Polignac number, because 12893389 - 2⁷ = 12893261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12893339) 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, 6446694 + 6446695.

It is an arithmetic number, because the mean of its divisors is an integer number (6446695).

Almost surely, 2^12893389 is an apocalyptic number.

It is an amenable number.

12893389 is a deficient number, since it is larger than the sum of its proper divisors (1).

12893389 is an equidigital number, since it uses as much as digits as its factorization.

12893389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 43.

The square root of 12893389 is about 3590.7365539677. The cubic root of 12893389 is about 234.4889391843.

The spelling of 12893389 in words is "twelve million, eight hundred ninety-three thousand, three hundred eighty-nine".