12786422 has 8 divisors (see below), whose sum is σ = 20923272. Its totient is φ = 5812000.

The previous prime is 12786391. The next prime is 12786427. The reversal of 12786422 is 22468721.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12786427) 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 3 ways as a sum of consecutive naturals, for example, 290579 + ... + 290622.

It is an arithmetic number, because the mean of its divisors is an integer number (2615409).

Almost surely, 2^12786422 is an apocalyptic number.

12786422 is a deficient number, since it is larger than the sum of its proper divisors (8136850).

12786422 is a wasteful number, since it uses less digits than its factorization.

12786422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581214.

The product of its digits is 10752, while the sum is 32.

The square root of 12786422 is about 3575.8106773150. The cubic root of 12786422 is about 233.8386766412.

The spelling of 12786422 in words is "twelve million, seven hundred eighty-six thousand, four hundred twenty-two".