12447983 has 4 divisors (see below), whose sum is σ = 13103160. Its totient is φ = 11792808.

The previous prime is 12447977. The next prime is 12448001. The reversal of 12447983 is 38974421.

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 12447983 - 2⁸ = 12447727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12447943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327560 + ... + 327597.

It is an arithmetic number, because the mean of its divisors is an integer number (3275790).

Almost surely, 2^12447983 is an apocalyptic number.

12447983 is a deficient number, since it is larger than the sum of its proper divisors (655177).

12447983 is an equidigital number, since it uses as much as digits as its factorization.

12447983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655176.

The product of its digits is 48384, while the sum is 38.

The square root of 12447983 is about 3528.1699222118. The cubic root of 12447983 is about 231.7570720658.

The spelling of 12447983 in words is "twelve million, four hundred forty-seven thousand, nine hundred eighty-three".