238239563 has 2 divisors, whose sum is σ = 238239564. Its totient is φ = 238239562.

The previous prime is 238239541. The next prime is 238239601. The reversal of 238239563 is 365932832.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238239563 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 238239563.

It is not a weakly prime, because it can be changed into another prime (238239523) 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, 119119781 + 119119782.

It is an arithmetic number, because the mean of its divisors is an integer number (119119782).

Almost surely, 2^238239563 is an apocalyptic number.

238239563 is a deficient number, since it is larger than the sum of its proper divisors (1).

238239563 is an equidigital number, since it uses as much as digits as its factorization.

238239563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 41.

The square root of 238239563 is about 15435.0109491377. The cubic root of 238239563 is about 619.9233021669.

The spelling of 238239563 in words is "two hundred thirty-eight million, two hundred thirty-nine thousand, five hundred sixty-three".