12894443 has 2 divisors, whose sum is σ = 12894444. Its totient is φ = 12894442.

The previous prime is 12894439. The next prime is 12894457. The reversal of 12894443 is 34449821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12894443 - 2² = 12894439 is a prime.

It is not a weakly prime, because it can be changed into another prime (12894433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6447221 + 6447222.

It is an arithmetic number, because the mean of its divisors is an integer number (6447222).

Almost surely, 2^12894443 is an apocalyptic number.

12894443 is a deficient number, since it is larger than the sum of its proper divisors (1).

12894443 is an equidigital number, since it uses as much as digits as its factorization.

12894443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 35.

The square root of 12894443 is about 3590.8833175140. The cubic root of 12894443 is about 234.4953286243.

The spelling of 12894443 in words is "twelve million, eight hundred ninety-four thousand, four hundred forty-three".