12694443 has 8 divisors (see below), whose sum is σ = 16968000. Its totient is φ = 8441928.

The previous prime is 12694439. The next prime is 12694447. The reversal of 12694443 is 34449621.

It is an interprime number because it is at equal distance from previous prime (12694439) and next prime (12694447).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12694443 - 2² = 12694439 is a prime.

It is a super-2 number, since 2×12694443² = 322297766160498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12694447) 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 in 7 ways as a sum of consecutive naturals, for example, 3793 + ... + 6306.

It is an arithmetic number, because the mean of its divisors is an integer number (2121000).

Almost surely, 2^12694443 is an apocalyptic number.

12694443 is a deficient number, since it is larger than the sum of its proper divisors (4273557).

12694443 is a wasteful number, since it uses less digits than its factorization.

12694443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10521.

The product of its digits is 20736, while the sum is 33.

The square root of 12694443 is about 3562.9261850339. The cubic root of 12694443 is about 233.2766213646.

The spelling of 12694443 in words is "twelve million, six hundred ninety-four thousand, four hundred forty-three".