12507716 has 24 divisors (see below), whose sum is σ = 24960600. Its totient is φ = 5432832.

The previous prime is 12507713. The next prime is 12507721. The reversal of 12507716 is 61770521.

It can be written as a sum of positive squares in 4 ways, for example, as 4120900 + 8386816 = 2030^2 + 2896^2 .

It is not an unprimeable number, because it can be changed into a prime (12507713) 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, 6191 + ... + 7958.

It is an arithmetic number, because the mean of its divisors is an integer number (1040025).

Almost surely, 2^12507716 is an apocalyptic number.

It is an amenable number.

12507716 is a deficient number, since it is larger than the sum of its proper divisors (12452884).

12507716 is a wasteful number, since it uses less digits than its factorization.

12507716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14183 (or 14181 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 12507716 is about 3536.6249447743. The cubic root of 12507716 is about 232.1271845243.

The spelling of 12507716 in words is "twelve million, five hundred seven thousand, seven hundred sixteen".