344121317 has 2 divisors, whose sum is σ = 344121318. Its totient is φ = 344121316.

The previous prime is 344121269. The next prime is 344121319. The reversal of 344121317 is 713121443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 295874401 + 48246916 = 17201^2 + 6946^2 .

It is an emirp because it is prime and its reverse (713121443) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 344121317 - 2⁸ = 344121061 is a prime.

Together with 344121319, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344121319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172060658 + 172060659.

It is an arithmetic number, because the mean of its divisors is an integer number (172060659).

Almost surely, 2^344121317 is an apocalyptic number.

It is an amenable number.

344121317 is a deficient number, since it is larger than the sum of its proper divisors (1).

344121317 is an equidigital number, since it uses as much as digits as its factorization.

344121317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 26.

The square root of 344121317 is about 18550.5071898318. The cubic root of 344121317 is about 700.7619709511.

The spelling of 344121317 in words is "three hundred forty-four million, one hundred twenty-one thousand, three hundred seventeen".