12887012 has 6 divisors (see below), whose sum is σ = 22552278. Its totient is φ = 6443504.

The previous prime is 12887009. The next prime is 12887027. The reversal of 12887012 is 21078821.

It can be written as a sum of positive squares in only one way, i.e., 12208036 + 678976 = 3494^2 + 824^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610873 + ... + 1610880.

It is an arithmetic number, because the mean of its divisors is an integer number (3758713).

Almost surely, 2^12887012 is an apocalyptic number.

It is an amenable number.

12887012 is a deficient number, since it is larger than the sum of its proper divisors (9665266).

12887012 is a wasteful number, since it uses less digits than its factorization.

12887012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3221757 (or 3221755 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 12887012 is about 3589.8484647684. The cubic root of 12887012 is about 234.4502738248.

The spelling of 12887012 in words is "twelve million, eight hundred eighty-seven thousand, twelve".