12427621 has 8 divisors (see below), whose sum is σ = 12870144. Its totient is φ = 11987760.

The previous prime is 12427607. The next prime is 12427661. The reversal of 12427621 is 12672421.

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 12427621 - 2¹¹ = 12425573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12427661) 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, 15195 + ... + 15991.

It is an arithmetic number, because the mean of its divisors is an integer number (1608768).

Almost surely, 2^12427621 is an apocalyptic number.

It is an amenable number.

12427621 is a deficient number, since it is larger than the sum of its proper divisors (442523).

12427621 is an equidigital number, since it uses as much as digits as its factorization.

12427621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331.

The product of its digits is 1344, while the sum is 25.

The square root of 12427621 is about 3525.2831091985. The cubic root of 12427621 is about 231.6306362428.

The spelling of 12427621 in words is "twelve million, four hundred twenty-seven thousand, six hundred twenty-one".