12894638 has 8 divisors (see below), whose sum is σ = 19753632. Its totient is φ = 6310096.

The previous prime is 12894599. The next prime is 12894641. The reversal of 12894638 is 83649821.

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

It is a junction number, because it is equal to n+sod(n) for n = 12894595 and 12894604.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 68495 + ... + 68682.

It is an arithmetic number, because the mean of its divisors is an integer number (2469204).

Almost surely, 2^12894638 is an apocalyptic number.

12894638 is a deficient number, since it is larger than the sum of its proper divisors (6858994).

12894638 is a wasteful number, since it uses less digits than its factorization.

12894638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137226.

The product of its digits is 82944, while the sum is 41.

The square root of 12894638 is about 3590.9104695049. The cubic root of 12894638 is about 234.4965106932.

The spelling of 12894638 in words is "twelve million, eight hundred ninety-four thousand, six hundred thirty-eight".