12289712 has 10 divisors (see below), whose sum is σ = 23811348. Its totient is φ = 6144848.

The previous prime is 12289687. The next prime is 12289757. The reversal of 12289712 is 21798221.

It is a happy number.

12289712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384038 + ... + 384069.

Almost surely, 2^12289712 is an apocalyptic number.

It is an amenable number.

12289712 is a deficient number, since it is larger than the sum of its proper divisors (11521636).

12289712 is an equidigital number, since it uses as much as digits as its factorization.

12289712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768115 (or 768109 counting only the distinct ones).

The product of its digits is 4032, while the sum is 32.

The square root of 12289712 is about 3505.6685525018. The cubic root of 12289712 is about 230.7706474671.

The spelling of 12289712 in words is "twelve million, two hundred eighty-nine thousand, seven hundred twelve".