12867828 has 24 divisors (see below), whose sum is σ = 30518880. Its totient is φ = 4218720.

The previous prime is 12867797. The next prime is 12867839. The reversal of 12867828 is 82876821.

It is a self number, because there is not a number n which added to its sum of digits gives 12867828.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 8058 + ... + 9521.

It is an arithmetic number, because the mean of its divisors is an integer number (1271620).

Almost surely, 2^12867828 is an apocalyptic number.

It is an amenable number.

12867828 is an abundant number, since it is smaller than the sum of its proper divisors (17651052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12867828 is a wasteful number, since it uses less digits than its factorization.

12867828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17647 (or 17645 counting only the distinct ones).

The product of its digits is 86016, while the sum is 42.

The square root of 12867828 is about 3587.1754905496. The cubic root of 12867828 is about 234.3338794348. Note that the first 3 decimals are identical.

It can be divided in two parts, 12867 and 828, that added together give a triangular number (13695 = T₁₆₅).

The spelling of 12867828 in words is "twelve million, eight hundred sixty-seven thousand, eight hundred twenty-eight".