12894447 has 4 divisors (see below), whose sum is σ = 17192600. Its totient is φ = 8596296.

The previous prime is 12894443. The next prime is 12894457. The reversal of 12894447 is 74449821.

12894447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74449821 = 3 ⋅24816607.

It is not a de Polignac number, because 12894447 - 2² = 12894443 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12894443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2149072 + ... + 2149077.

It is an arithmetic number, because the mean of its divisors is an integer number (4298150).

Almost surely, 2^12894447 is an apocalyptic number.

12894447 is a deficient number, since it is larger than the sum of its proper divisors (4298153).

12894447 is an equidigital number, since it uses as much as digits as its factorization.

12894447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4298152.

The product of its digits is 64512, while the sum is 39.

The square root of 12894447 is about 3590.8838744799. The cubic root of 12894447 is about 234.4953528720.

The spelling of 12894447 in words is "twelve million, eight hundred ninety-four thousand, four hundred forty-seven".