12276647 has 4 divisors (see below), whose sum is σ = 12283656. Its totient is φ = 12269640.

The previous prime is 12276643. The next prime is 12276683. The reversal of 12276647 is 74667221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12276647 - 2² = 12276643 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12276643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1697 + ... + 5237.

It is an arithmetic number, because the mean of its divisors is an integer number (3070914).

Almost surely, 2^12276647 is an apocalyptic number.

12276647 is a deficient number, since it is larger than the sum of its proper divisors (7009).

12276647 is an equidigital number, since it uses as much as digits as its factorization.

12276647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7008.

The product of its digits is 28224, while the sum is 35.

The square root of 12276647 is about 3503.8046463808. The cubic root of 12276647 is about 230.6888422535.

The spelling of 12276647 in words is "twelve million, two hundred seventy-six thousand, six hundred forty-seven".