12289868 has 6 divisors (see below), whose sum is σ = 21507276. Its totient is φ = 6144932.

The previous prime is 12289847. The next prime is 12289891. The reversal of 12289868 is 86898221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1536230 + ... + 1536237.

It is an arithmetic number, because the mean of its divisors is an integer number (3584546).

Almost surely, 2^12289868 is an apocalyptic number.

It is an amenable number.

12289868 is a deficient number, since it is larger than the sum of its proper divisors (9217408).

12289868 is a wasteful number, since it uses less digits than its factorization.

12289868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3072471 (or 3072469 counting only the distinct ones).

The product of its digits is 110592, while the sum is 44.

The square root of 12289868 is about 3505.6908021102. The cubic root of 12289868 is about 230.7716238954.

The spelling of 12289868 in words is "twelve million, two hundred eighty-nine thousand, eight hundred sixty-eight".