12009964 has 6 divisors (see below), whose sum is σ = 21017444. Its totient is φ = 6004980.

The previous prime is 12009961. The next prime is 12009971. The reversal of 12009964 is 46990021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12009961) 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 as a sum of consecutive naturals, namely, 1501242 + ... + 1501249.

Almost surely, 2^12009964 is an apocalyptic number.

It is an amenable number.

12009964 is a deficient number, since it is larger than the sum of its proper divisors (9007480).

12009964 is a wasteful number, since it uses less digits than its factorization.

12009964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3002495 (or 3002493 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 12009964 is about 3465.5394962401. The cubic root of 12009964 is about 229.0061972732.

Adding to 12009964 its reverse (46990021), we get a palindrome (58999985).

The spelling of 12009964 in words is "twelve million, nine thousand, nine hundred sixty-four".