344172949 has 2 divisors, whose sum is σ = 344172950. Its totient is φ = 344172948.

The previous prime is 344172931. The next prime is 344172971. The reversal of 344172949 is 949271443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 337897924 + 6275025 = 18382^2 + 2505^2 .

It is an emirp because it is prime and its reverse (949271443) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 344172949 - 2²³ = 335784341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344172979) 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, 172086474 + 172086475.

It is an arithmetic number, because the mean of its divisors is an integer number (172086475).

Almost surely, 2^344172949 is an apocalyptic number.

It is an amenable number.

344172949 is a deficient number, since it is larger than the sum of its proper divisors (1).

344172949 is an equidigital number, since it uses as much as digits as its factorization.

344172949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 43.

The square root of 344172949 is about 18551.8987976972. The cubic root of 344172949 is about 700.7970166660.

The spelling of 344172949 in words is "three hundred forty-four million, one hundred seventy-two thousand, nine hundred forty-nine".