12787412 has 12 divisors (see below), whose sum is σ = 24412416. Its totient is φ = 5812440.

The previous prime is 12787409. The next prime is 12787421. The reversal of 12787412 is 21478721.

It is a happy number.

12787412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145268 + ... + 145355.

It is an arithmetic number, because the mean of its divisors is an integer number (2034368).

Almost surely, 2^12787412 is an apocalyptic number.

It is an amenable number.

12787412 is a deficient number, since it is larger than the sum of its proper divisors (11625004).

12787412 is a wasteful number, since it uses less digits than its factorization.

12787412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290638 (or 290636 counting only the distinct ones).

The product of its digits is 6272, while the sum is 32.

The square root of 12787412 is about 3575.9491047832. The cubic root of 12787412 is about 233.8447115407.

The spelling of 12787412 in words is "twelve million, seven hundred eighty-seven thousand, four hundred twelve".