238969321 has 2 divisors, whose sum is σ = 238969322. Its totient is φ = 238969320.

The previous prime is 238969307. The next prime is 238969343. The reversal of 238969321 is 123969832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140185600 + 98783721 = 11840^2 + 9939^2 .

It is a cyclic number.

It is not a de Polignac number, because 238969321 - 2⁹ = 238968809 is a prime.

It is not a weakly prime, because it can be changed into another prime (238969121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119484660 + 119484661.

It is an arithmetic number, because the mean of its divisors is an integer number (119484661).

Almost surely, 2^238969321 is an apocalyptic number.

It is an amenable number.

238969321 is a deficient number, since it is larger than the sum of its proper divisors (1).

238969321 is an equidigital number, since it uses as much as digits as its factorization.

238969321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 43.

The square root of 238969321 is about 15458.6325721262. The cubic root of 238969321 is about 620.5556248796. Note that the first 3 decimals are identical.

The spelling of 238969321 in words is "two hundred thirty-eight million, nine hundred sixty-nine thousand, three hundred twenty-one".