338989907 has 2 divisors, whose sum is σ = 338989908. Its totient is φ = 338989906.

The previous prime is 338989831. The next prime is 338989913. The reversal of 338989907 is 709989833.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 338989907 - 2¹⁰ = 338988883 is a prime.

It is a super-2 number, since 2×338989907² = 229828314095737298, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (338989957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169494953 + 169494954.

It is an arithmetic number, because the mean of its divisors is an integer number (169494954).

Almost surely, 2^338989907 is an apocalyptic number.

338989907 is a deficient number, since it is larger than the sum of its proper divisors (1).

338989907 is an equidigital number, since it uses as much as digits as its factorization.

338989907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2939328, while the sum is 56.

The square root of 338989907 is about 18411.6785492252. The cubic root of 338989907 is about 697.2613449349.

The spelling of 338989907 in words is "three hundred thirty-eight million, nine hundred eighty-nine thousand, nine hundred seven".