344000513 has 2 divisors, whose sum is σ = 344000514. Its totient is φ = 344000512.

The previous prime is 344000497. The next prime is 344000519. The reversal of 344000513 is 315000443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 285508609 + 58491904 = 16897^2 + 7648^2 .

It is an emirp because it is prime and its reverse (315000443) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 344000513 - 2⁴ = 344000497 is a prime.

It is not a weakly prime, because it can be changed into another prime (344000519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172000256 + 172000257.

It is an arithmetic number, because the mean of its divisors is an integer number (172000257).

Almost surely, 2^344000513 is an apocalyptic number.

It is an amenable number.

344000513 is a deficient number, since it is larger than the sum of its proper divisors (1).

344000513 is an equidigital number, since it uses as much as digits as its factorization.

344000513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 344000513 is about 18547.2508205394. The cubic root of 344000513 is about 700.6799603801.

Adding to 344000513 its reverse (315000443), we get a palindrome (659000956).

The spelling of 344000513 in words is "three hundred forty-four million, five hundred thirteen", and thus it is an aban number.