12003867 has 12 divisors (see below), whose sum is σ = 17419584. Its totient is φ = 7965360.

The previous prime is 12003833. The next prime is 12003869. The reversal of 12003867 is 76830021.

It is not a de Polignac number, because 12003867 - 2¹⁰ = 12002843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12003867.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12003869) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 984 + ... + 4997.

It is an arithmetic number, because the mean of its divisors is an integer number (1451632).

Almost surely, 2^12003867 is an apocalyptic number.

12003867 is a deficient number, since it is larger than the sum of its proper divisors (5415717).

12003867 is a wasteful number, since it uses less digits than its factorization.

12003867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6210 (or 6207 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 12003867 is about 3464.6597235515. The cubic root of 12003867 is about 228.9674381472.

Adding to 12003867 its reverse (76830021), we get a palindrome (88833888).

The spelling of 12003867 in words is "twelve million, three thousand, eight hundred sixty-seven".