340217663 has 2 divisors, whose sum is σ = 340217664. Its totient is φ = 340217662.

The previous prime is 340217641. The next prime is 340217671. The reversal of 340217663 is 366712043.

It is a strong prime.

It is an emirp because it is prime and its reverse (366712043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340217663 - 2⁸ = 340217407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340217693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170108831 + 170108832.

It is an arithmetic number, because the mean of its divisors is an integer number (170108832).

Almost surely, 2^340217663 is an apocalyptic number.

340217663 is a deficient number, since it is larger than the sum of its proper divisors (1).

340217663 is an equidigital number, since it uses as much as digits as its factorization.

340217663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 340217663 is about 18444.9901870399. The cubic root of 340217663 is about 698.1021127117.

The spelling of 340217663 in words is "three hundred forty million, two hundred seventeen thousand, six hundred sixty-three".