344354909 has 2 divisors, whose sum is σ = 344354910. Its totient is φ = 344354908.

The previous prime is 344354897. The next prime is 344354911. The reversal of 344354909 is 909453443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 343360900 + 994009 = 18530^2 + 997^2 .

It is a cyclic number.

It is not a de Polignac number, because 344354909 - 2¹⁶ = 344289373 is a prime.

Together with 344354911, 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 (344354929) 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, 172177454 + 172177455.

It is an arithmetic number, because the mean of its divisors is an integer number (172177455).

Almost surely, 2^344354909 is an apocalyptic number.

It is an amenable number.

344354909 is a deficient number, since it is larger than the sum of its proper divisors (1).

344354909 is an equidigital number, since it uses as much as digits as its factorization.

344354909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 41.

The square root of 344354909 is about 18556.8022299102. The cubic root of 344354909 is about 700.9204958256.

The spelling of 344354909 in words is "three hundred forty-four million, three hundred fifty-four thousand, nine hundred nine".