12000004 has 12 divisors (see below), whose sum is σ = 21030604. Its totient is φ = 5991264.

The previous prime is 11999989. The next prime is 12000017. The reversal of 12000004 is 40000021.

12000004 is nontrivially palindromic in base 7.

It can be written as a sum of positive squares in 2 ways, for example, as 6240004 + 5760000 = 2498^2 + 2400^2 .

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 in 3 ways as a sum of consecutive naturals, for example, 1654 + ... + 5170.

Almost surely, 2^12000004 is an apocalyptic number.

It is an amenable number.

12000004 is a deficient number, since it is larger than the sum of its proper divisors (9030600).

12000004 is a wasteful number, since it uses less digits than its factorization.

12000004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4374 (or 4372 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 12000004 is about 3464.1021924880. The cubic root of 12000004 is about 228.9428739488.

Adding to 12000004 its reverse (40000021), we get a palindrome (52000025).

The spelling of 12000004 in words is "twelve million, four", and thus it is an aban number.