239934089 has 2 divisors, whose sum is σ = 239934090. Its totient is φ = 239934088.

The previous prime is 239934083. The next prime is 239934103. The reversal of 239934089 is 980439932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153760000 + 86174089 = 12400^2 + 9283^2 .

It is a cyclic number.

It is not a de Polignac number, because 239934089 - 2⁸ = 239933833 is a prime.

It is not a weakly prime, because it can be changed into another prime (239934083) 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, 119967044 + 119967045.

It is an arithmetic number, because the mean of its divisors is an integer number (119967045).

Almost surely, 2^239934089 is an apocalyptic number.

It is an amenable number.

239934089 is a deficient number, since it is larger than the sum of its proper divisors (1).

239934089 is an equidigital number, since it uses as much as digits as its factorization.

239934089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 419904, while the sum is 47.

The square root of 239934089 is about 15489.8059703794. The cubic root of 239934089 is about 621.3896068706.

It can be divided in two parts, 23993 and 4089, that added together give a palindrome (28082).

The spelling of 239934089 in words is "two hundred thirty-nine million, nine hundred thirty-four thousand, eighty-nine".