338908663 has 2 divisors, whose sum is σ = 338908664. Its totient is φ = 338908662.

The previous prime is 338908649. The next prime is 338908673. The reversal of 338908663 is 366809833.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-338908663 is a prime.

It is a super-2 number, since 2×338908663² = 229718163712895138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (338908673) 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, 169454331 + 169454332.

It is an arithmetic number, because the mean of its divisors is an integer number (169454332).

Almost surely, 2^338908663 is an apocalyptic number.

338908663 is a deficient number, since it is larger than the sum of its proper divisors (1).

338908663 is an equidigital number, since it uses as much as digits as its factorization.

338908663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 46.

The square root of 338908663 is about 18409.4720999816. The cubic root of 338908663 is about 697.2056374485.

The spelling of 338908663 in words is "three hundred thirty-eight million, nine hundred eight thousand, six hundred sixty-three".