12887788 has 12 divisors (see below), whose sum is σ = 23078440. Its totient is φ = 6293952.

The previous prime is 12887773. The next prime is 12887807. The reversal of 12887788 is 88778821.

12887788 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 37293 + ... + 37636.

Almost surely, 2^12887788 is an apocalyptic number.

It is an amenable number.

12887788 is a deficient number, since it is larger than the sum of its proper divisors (10190652).

12887788 is a wasteful number, since it uses less digits than its factorization.

12887788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74976 (or 74974 counting only the distinct ones).

The product of its digits is 401408, while the sum is 49.

The square root of 12887788 is about 3589.9565456980. The cubic root of 12887788 is about 234.4549795901.

The spelling of 12887788 in words is "twelve million, eight hundred eighty-seven thousand, seven hundred eighty-eight".