239372897 has 2 divisors, whose sum is σ = 239372898. Its totient is φ = 239372896.

The previous prime is 239372893. The next prime is 239372951. The reversal of 239372897 is 798273932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 234426721 + 4946176 = 15311^2 + 2224^2 .

It is a cyclic number.

It is not a de Polignac number, because 239372897 - 2² = 239372893 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (239372893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119686448 + 119686449.

It is an arithmetic number, because the mean of its divisors is an integer number (119686449).

Almost surely, 2^239372897 is an apocalyptic number.

It is an amenable number.

239372897 is a deficient number, since it is larger than the sum of its proper divisors (1).

239372897 is an equidigital number, since it uses as much as digits as its factorization.

239372897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1143072, while the sum is 50.

The square root of 239372897 is about 15471.6804840328. The cubic root of 239372897 is about 620.9047638465.

The spelling of 239372897 in words is "two hundred thirty-nine million, three hundred seventy-two thousand, eight hundred ninety-seven".