12507836 has 12 divisors (see below), whose sum is σ = 23878680. Its totient is φ = 5685360.

The previous prime is 12507827. The next prime is 12507839. The reversal of 12507836 is 63870521.

It is a happy number.

It is a super-2 number, since 2×12507836² = 312891922805792, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12507839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142091 + ... + 142178.

It is an arithmetic number, because the mean of its divisors is an integer number (1989890).

Almost surely, 2^12507836 is an apocalyptic number.

It is an amenable number.

12507836 is a deficient number, since it is larger than the sum of its proper divisors (11370844).

12507836 is a wasteful number, since it uses less digits than its factorization.

12507836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284284 (or 284282 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 12507836 is about 3536.6419100610. The cubic root of 12507836 is about 232.1279268707.

The spelling of 12507836 in words is "twelve million, five hundred seven thousand, eight hundred thirty-six".