12727983 has 4 divisors (see below), whose sum is σ = 16970648. Its totient is φ = 8485320.

The previous prime is 12727909. The next prime is 12727987. The reversal of 12727983 is 38972721.

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

It is not a de Polignac number, because 12727983 - 2⁸ = 12727727 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 (12727987) 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 in 3 ways as a sum of consecutive naturals, for example, 2121328 + ... + 2121333.

It is an arithmetic number, because the mean of its divisors is an integer number (4242662).

Almost surely, 2^12727983 is an apocalyptic number.

12727983 is a deficient number, since it is larger than the sum of its proper divisors (4242665).

12727983 is an equidigital number, since it uses as much as digits as its factorization.

12727983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4242664.

The product of its digits is 42336, while the sum is 39.

The square root of 12727983 is about 3567.6298855122. The cubic root of 12727983 is about 233.4818874875.

The spelling of 12727983 in words is "twelve million, seven hundred twenty-seven thousand, nine hundred eighty-three".