344313313 has 2 divisors, whose sum is σ = 344313314. Its totient is φ = 344313312.

The previous prime is 344313271. The next prime is 344313323. The reversal of 344313313 is 313313443.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 249387264 + 94926049 = 15792^2 + 9743^2 .

It is an emirp because it is prime and its reverse (313313443) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344313313 is a prime.

It is not a weakly prime, because it can be changed into another prime (344313323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172156656 + 172156657.

It is an arithmetic number, because the mean of its divisors is an integer number (172156657).

Almost surely, 2^344313313 is an apocalyptic number.

It is an amenable number.

344313313 is a deficient number, since it is larger than the sum of its proper divisors (1).

344313313 is an equidigital number, since it uses as much as digits as its factorization.

344313313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 25.

The square root of 344313313 is about 18555.6814210635. The cubic root of 344313313 is about 700.8922723637.

Adding to 344313313 its reverse (313313443), we get a palindrome (657626756).

The spelling of 344313313 in words is "three hundred forty-four million, three hundred thirteen thousand, three hundred thirteen".