344345563 has 2 divisors, whose sum is σ = 344345564. Its totient is φ = 344345562.

The previous prime is 344345543. The next prime is 344345597. The reversal of 344345563 is 365543443.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344345563 is a prime.

It is not a weakly prime, because it can be changed into another prime (344345543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172172781 + 172172782.

It is an arithmetic number, because the mean of its divisors is an integer number (172172782).

Almost surely, 2^344345563 is an apocalyptic number.

344345563 is a deficient number, since it is larger than the sum of its proper divisors (1).

344345563 is an equidigital number, since it uses as much as digits as its factorization.

344345563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 37.

The square root of 344345563 is about 18556.5504067971. The cubic root of 344345563 is about 700.9141546332.

The spelling of 344345563 in words is "three hundred forty-four million, three hundred forty-five thousand, five hundred sixty-three".