12426643 has 8 divisors (see below), whose sum is σ = 13188960. Its totient is φ = 11667840.

The previous prime is 12426619. The next prime is 12426653. The reversal of 12426643 is 34662421.

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

It is a cyclic number.

It is not a de Polignac number, because 12426643 - 2¹³ = 12418451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12426653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11538 + ... + 12568.

It is an arithmetic number, because the mean of its divisors is an integer number (1648620).

Almost surely, 2^12426643 is an apocalyptic number.

12426643 is a deficient number, since it is larger than the sum of its proper divisors (762317).

12426643 is a wasteful number, since it uses less digits than its factorization.

12426643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757.

The product of its digits is 6912, while the sum is 28.

The square root of 12426643 is about 3525.1443942057. The cubic root of 12426643 is about 231.6245599738.

The spelling of 12426643 in words is "twelve million, four hundred twenty-six thousand, six hundred forty-three".