344493257 has 2 divisors, whose sum is σ = 344493258. Its totient is φ = 344493256.

The previous prime is 344493229. The next prime is 344493293. The reversal of 344493257 is 752394443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 287777296 + 56715961 = 16964^2 + 7531^2 .

It is an emirp because it is prime and its reverse (752394443) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 344493257 - 2¹² = 344489161 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (344493217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172246628 + 172246629.

It is an arithmetic number, because the mean of its divisors is an integer number (172246629).

Almost surely, 2^344493257 is an apocalyptic number.

It is an amenable number.

344493257 is a deficient number, since it is larger than the sum of its proper divisors (1).

344493257 is an equidigital number, since it uses as much as digits as its factorization.

344493257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 41.

The square root of 344493257 is about 18560.5295452474. The cubic root of 344493257 is about 701.0143505114.

The spelling of 344493257 in words is "three hundred forty-four million, four hundred ninety-three thousand, two hundred fifty-seven".