12427646 has 64 divisors (see below), whose sum is σ = 25380864. Its totient is φ = 4416000.

The previous prime is 12427607. The next prime is 12427661. The reversal of 12427646 is 64672421.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a zygodrome in base 6.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122996 + ... + 123096.

It is an arithmetic number, because the mean of its divisors is an integer number (396576).

Almost surely, 2^12427646 is an apocalyptic number.

12427646 is an abundant number, since it is smaller than the sum of its proper divisors (12953218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12427646 is a wasteful number, since it uses less digits than its factorization.

12427646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185.

The product of its digits is 16128, while the sum is 32.

The square root of 12427646 is about 3525.2866550112. The cubic root of 12427646 is about 231.6307915625.

It can be divided in two parts, 1242 and 7646, that added together give a palindrome (8888).

The spelling of 12427646 in words is "twelve million, four hundred twenty-seven thousand, six hundred forty-six".