238833197 has 2 divisors, whose sum is σ = 238833198. Its totient is φ = 238833196.

The previous prime is 238833157. The next prime is 238833209. The reversal of 238833197 is 791338832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194490916 + 44342281 = 13946^2 + 6659^2 .

It is a cyclic number.

It is not a de Polignac number, because 238833197 - 2⁸ = 238832941 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 (238833107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119416598 + 119416599.

It is an arithmetic number, because the mean of its divisors is an integer number (119416599).

Almost surely, 2^238833197 is an apocalyptic number.

It is an amenable number.

238833197 is a deficient number, since it is larger than the sum of its proper divisors (1).

238833197 is an equidigital number, since it uses as much as digits as its factorization.

238833197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 44.

The square root of 238833197 is about 15454.2290975642. The cubic root of 238833197 is about 620.4377735476.

The spelling of 238833197 in words is "two hundred thirty-eight million, eight hundred thirty-three thousand, one hundred ninety-seven".