12427005 has 16 divisors (see below), whose sum is σ = 20421504. Its totient is φ = 6448320.

The previous prime is 12426991. The next prime is 12427027. The reversal of 12427005 is 50072421.

It is not a de Polignac number, because 12427005 - 2⁴ = 12426989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10641 + ... + 11750.

It is an arithmetic number, because the mean of its divisors is an integer number (1276344).

Almost surely, 2^12427005 is an apocalyptic number.

12427005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12427005 is a deficient number, since it is larger than the sum of its proper divisors (7994499).

12427005 is a wasteful number, since it uses less digits than its factorization.

12427005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22436.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 12427005 is about 3525.1957392463. The cubic root of 12427005 is about 231.6268091003.

Adding to 12427005 its reverse (50072421), we get a palindrome (62499426).

The spelling of 12427005 in words is "twelve million, four hundred twenty-seven thousand, five".