239073389 has 2 divisors, whose sum is σ = 239073390. Its totient is φ = 239073388.

The previous prime is 239073383. The next prime is 239073427. The reversal of 239073389 is 983370932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 237468100 + 1605289 = 15410^2 + 1267^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-239073389 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (239073383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119536694 + 119536695.

It is an arithmetic number, because the mean of its divisors is an integer number (119536695).

Almost surely, 2^239073389 is an apocalyptic number.

It is an amenable number.

239073389 is a deficient number, since it is larger than the sum of its proper divisors (1).

239073389 is an equidigital number, since it uses as much as digits as its factorization.

239073389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 44.

The square root of 239073389 is about 15461.9982214460. The cubic root of 239073389 is about 620.6456930805.

The spelling of 239073389 in words is "two hundred thirty-nine million, seventy-three thousand, three hundred eighty-nine".