239360389 has 2 divisors, whose sum is σ = 239360390. Its totient is φ = 239360388.

The previous prime is 239360369. The next prime is 239360399. The reversal of 239360389 is 983063932.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123432100 + 115928289 = 11110^2 + 10767^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-239360389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (239360339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119680194 + 119680195.

It is an arithmetic number, because the mean of its divisors is an integer number (119680195).

Almost surely, 2^239360389 is an apocalyptic number.

It is an amenable number.

239360389 is a deficient number, since it is larger than the sum of its proper divisors (1).

239360389 is an equidigital number, since it uses as much as digits as its factorization.

239360389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 43.

The square root of 239360389 is about 15471.2762563403. The cubic root of 239360389 is about 620.8939489044.

The spelling of 239360389 in words is "two hundred thirty-nine million, three hundred sixty thousand, three hundred eighty-nine".