344479979 has 2 divisors, whose sum is σ = 344479980. Its totient is φ = 344479978.

The previous prime is 344479921. The next prime is 344479981. The reversal of 344479979 is 979974443.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344479979 is a prime.

It is a Sophie Germain prime.

Together with 344479981, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (344479999) 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 as a sum of consecutive naturals, namely, 172239989 + 172239990.

It is an arithmetic number, because the mean of its divisors is an integer number (172239990).

Almost surely, 2^344479979 is an apocalyptic number.

344479979 is a deficient number, since it is larger than the sum of its proper divisors (1).

344479979 is an equidigital number, since it uses as much as digits as its factorization.

344479979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6858432, while the sum is 56.

The square root of 344479979 is about 18560.1718472648. The cubic root of 344479979 is about 701.0053438637.

The spelling of 344479979 in words is "three hundred forty-four million, four hundred seventy-nine thousand, nine hundred seventy-nine".