12907005 has 32 divisors (see below), whose sum is σ = 21869568. Its totient is φ = 6489600.

The previous prime is 12906977. The next prime is 12907007. The reversal of 12907005 is 50070921.

It is not a de Polignac number, because 12907005 - 2¹⁵ = 12874237 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12907007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18727 + ... + 19403.

It is an arithmetic number, because the mean of its divisors is an integer number (683424).

Almost surely, 2^12907005 is an apocalyptic number.

12907005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12907005 is a deficient number, since it is larger than the sum of its proper divisors (8962563).

12907005 is a wasteful number, since it uses less digits than its factorization.

12907005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757.

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 12907005 is about 3592.6320435024. The cubic root of 12907005 is about 234.5714537748.

Adding to 12907005 its reverse (50070921), we get a palindrome (62977926).

The spelling of 12907005 in words is "twelve million, nine hundred seven thousand, five".