12426621 has 8 divisors (see below), whose sum is σ = 16778880. Its totient is φ = 8179392.

The previous prime is 12426619. The next prime is 12426653. The reversal of 12426621 is 12662421.

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

It is not a de Polignac number, because 12426621 - 2¹ = 12426619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12426591 and 12426600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12426671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25980 + ... + 26453.

It is an arithmetic number, because the mean of its divisors is an integer number (2097360).

Almost surely, 2^12426621 is an apocalyptic number.

It is an amenable number.

12426621 is a deficient number, since it is larger than the sum of its proper divisors (4352259).

12426621 is an equidigital number, since it uses as much as digits as its factorization.

12426621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52515.

The product of its digits is 1152, while the sum is 24.

The square root of 12426621 is about 3525.1412737648. The cubic root of 12426621 is about 231.6244232852.

The spelling of 12426621 in words is "twelve million, four hundred twenty-six thousand, six hundred twenty-one".