12007636 has 6 divisors (see below), whose sum is σ = 21013370. Its totient is φ = 6003816.

The previous prime is 12007609. The next prime is 12007649. The reversal of 12007636 is 63670021.

It can be written as a sum of positive squares in only one way, i.e., 9922500 + 2085136 = 3150^2 + 1444^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12007636.

It is a congruent number.

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, 1500951 + ... + 1500958.

Almost surely, 2^12007636 is an apocalyptic number.

It is an amenable number.

12007636 is a deficient number, since it is larger than the sum of its proper divisors (9005734).

12007636 is a wasteful number, since it uses less digits than its factorization.

12007636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3001913 (or 3001911 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 12007636 is about 3465.2036015218. The cubic root of 12007636 is about 228.9913995359.

Adding to 12007636 its reverse (63670021), we get a palindrome (75677657).

It can be divided in two parts, 1200 and 7636, that added together give a square (8836 = 94²).

The spelling of 12007636 in words is "twelve million, seven thousand, six hundred thirty-six".