12609983 has 4 divisors (see below), whose sum is σ = 13044840. Its totient is φ = 12175128.

The previous prime is 12609979. The next prime is 12609997. The reversal of 12609983 is 38990621.

12609983 is nontrivially palindromic in base 14.

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

It is not a de Polignac number, because 12609983 - 2² = 12609979 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 (12609953) 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, 217385 + ... + 217442.

It is an arithmetic number, because the mean of its divisors is an integer number (3261210).

Almost surely, 2^12609983 is an apocalyptic number.

12609983 is a deficient number, since it is larger than the sum of its proper divisors (434857).

12609983 is an equidigital number, since it uses as much as digits as its factorization.

12609983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434856.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 12609983 is about 3551.0537872581. The cubic root of 12609983 is about 232.7581162374.

The spelling of 12609983 in words is "twelve million, six hundred nine thousand, nine hundred eighty-three".