239422321 has 2 divisors, whose sum is σ = 239422322. Its totient is φ = 239422320.

The previous prime is 239422307. The next prime is 239422343. The reversal of 239422321 is 123224932.

239422321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 235162225 + 4260096 = 15335^2 + 2064^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-239422321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 239422321.

It is not a weakly prime, because it can be changed into another prime (239422361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119711160 + 119711161.

It is an arithmetic number, because the mean of its divisors is an integer number (119711161).

Almost surely, 2^239422321 is an apocalyptic number.

It is an amenable number.

239422321 is a deficient number, since it is larger than the sum of its proper divisors (1).

239422321 is an equidigital number, since it uses as much as digits as its factorization.

239422321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 28.

The square root of 239422321 is about 15473.2776424389. The cubic root of 239422321 is about 620.9474942275.

The spelling of 239422321 in words is "two hundred thirty-nine million, four hundred twenty-two thousand, three hundred twenty-one".