12379949 has 2 divisors, whose sum is σ = 12379950. Its totient is φ = 12379948.

The previous prime is 12379937. The next prime is 12379951. The reversal of 12379949 is 94997321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11682724 + 697225 = 3418^2 + 835^2 .

It is a cyclic number.

It is not a de Polignac number, because 12379949 - 2⁸ = 12379693 is a prime.

It is a Sophie Germain prime.

Together with 12379951, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12379979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6189974 + 6189975.

It is an arithmetic number, because the mean of its divisors is an integer number (6189975).

Almost surely, 2^12379949 is an apocalyptic number.

It is an amenable number.

12379949 is a deficient number, since it is larger than the sum of its proper divisors (1).

12379949 is an equidigital number, since it uses as much as digits as its factorization.

12379949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122472, while the sum is 44.

The square root of 12379949 is about 3518.5151697840. The cubic root of 12379949 is about 231.3340805527.

The spelling of 12379949 in words is "twelve million, three hundred seventy-nine thousand, nine hundred forty-nine".