12000447 has 8 divisors (see below), whose sum is σ = 17778480. Its totient is φ = 8000280.

The previous prime is 12000433. The next prime is 12000467. The reversal of 12000447 is 74400021.

It is a happy number.

It is not a de Polignac number, because 12000447 - 2⁴ = 12000431 is a prime.

It is a super-3 number, since 3×12000447³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222204 + ... + 222257.

It is an arithmetic number, because the mean of its divisors is an integer number (2222310).

Almost surely, 2^12000447 is an apocalyptic number.

12000447 is a deficient number, since it is larger than the sum of its proper divisors (5778033).

12000447 is an equidigital number, since it uses as much as digits as its factorization.

12000447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444470 (or 444464 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 12000447 is about 3464.1661334295. The cubic root of 12000447 is about 228.9456911824.

Adding to 12000447 its reverse (74400021), we get a palindrome (86400468).

The spelling of 12000447 in words is "twelve million, four hundred forty-seven", and thus it is an aban number.