12308647 has 4 divisors (see below), whose sum is σ = 13255480. Its totient is φ = 11361816.

The previous prime is 12308623. The next prime is 12308669. The reversal of 12308647 is 74680321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12308647 - 2¹¹ = 12306599 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 (12308677) 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, 473397 + ... + 473422.

It is an arithmetic number, because the mean of its divisors is an integer number (3313870).

Almost surely, 2^12308647 is an apocalyptic number.

12308647 is a deficient number, since it is larger than the sum of its proper divisors (946833).

12308647 is an equidigital number, since it uses as much as digits as its factorization.

12308647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946832.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 12308647 is about 3508.3681391781. The cubic root of 12308647 is about 230.8891042706.

Adding to 12308647 its reverse (74680321), we get a palindrome (86988968).

The spelling of 12308647 in words is "twelve million, three hundred eight thousand, six hundred forty-seven".