12712912 has 10 divisors (see below), whose sum is σ = 24631298. Its totient is φ = 6356448.

The previous prime is 12712891. The next prime is 12712913. The reversal of 12712912 is 21921721.

It can be written as a sum of positive squares in only one way, i.e., 12702096 + 10816 = 3564^2 + 104^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12712913) 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 as a sum of consecutive naturals, namely, 397263 + ... + 397294.

Almost surely, 2^12712912 is an apocalyptic number.

It is an amenable number.

12712912 is a deficient number, since it is larger than the sum of its proper divisors (11918386).

12712912 is an equidigital number, since it uses as much as digits as its factorization.

12712912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794565 (or 794559 counting only the distinct ones).

The product of its digits is 504, while the sum is 25.

The square root of 12712912 is about 3565.5170733009. The cubic root of 12712912 is about 233.3896970414.

The spelling of 12712912 in words is "twelve million, seven hundred twelve thousand, nine hundred twelve".