344518663 has 2 divisors, whose sum is σ = 344518664. Its totient is φ = 344518662.

The previous prime is 344518649. The next prime is 344518673. The reversal of 344518663 is 366815443.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 344518663 - 2⁵ = 344518631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344518673) 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, 172259331 + 172259332.

It is an arithmetic number, because the mean of its divisors is an integer number (172259332).

Almost surely, 2^344518663 is an apocalyptic number.

344518663 is a deficient number, since it is larger than the sum of its proper divisors (1).

344518663 is an equidigital number, since it uses as much as digits as its factorization.

344518663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 40.

The square root of 344518663 is about 18561.2139419813. The cubic root of 344518663 is about 701.0315831010.

The spelling of 344518663 in words is "three hundred forty-four million, five hundred eighteen thousand, six hundred sixty-three".