238223471 has 2 divisors, whose sum is σ = 238223472. Its totient is φ = 238223470.

The previous prime is 238223467. The next prime is 238223477. The reversal of 238223471 is 174322832.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 238223471 - 2² = 238223467 is a prime.

It is a super-3 number, since 3×238223471³ (a number of 26 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238223477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119111735 + 119111736.

It is an arithmetic number, because the mean of its divisors is an integer number (119111736).

Almost surely, 2^238223471 is an apocalyptic number.

238223471 is a deficient number, since it is larger than the sum of its proper divisors (1).

238223471 is an equidigital number, since it uses as much as digits as its factorization.

238223471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 32.

The square root of 238223471 is about 15434.4896579058. The cubic root of 238223471 is about 619.9093441852.

The spelling of 238223471 in words is "two hundred thirty-eight million, two hundred twenty-three thousand, four hundred seventy-one".