238765297 has 2 divisors, whose sum is σ = 238765298. Its totient is φ = 238765296.

The previous prime is 238765253. The next prime is 238765309. The reversal of 238765297 is 792567832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146143921 + 92621376 = 12089^2 + 9624^2 .

It is a cyclic number.

It is not a de Polignac number, because 238765297 - 2⁷ = 238765169 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 238765297.

It is not a weakly prime, because it can be changed into another prime (238765997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119382648 + 119382649.

It is an arithmetic number, because the mean of its divisors is an integer number (119382649).

Almost surely, 2^238765297 is an apocalyptic number.

It is an amenable number.

238765297 is a deficient number, since it is larger than the sum of its proper divisors (1).

238765297 is an equidigital number, since it uses as much as digits as its factorization.

238765297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 49.

The square root of 238765297 is about 15452.0321317295. The cubic root of 238765297 is about 620.3789713958.

The spelling of 238765297 in words is "two hundred thirty-eight million, seven hundred sixty-five thousand, two hundred ninety-seven".