238565473 has 2 divisors, whose sum is σ = 238565474. Its totient is φ = 238565472.

The previous prime is 238565417. The next prime is 238565477. The reversal of 238565473 is 374565832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 229613409 + 8952064 = 15153^2 + 2992^2 .

It is a cyclic number.

It is not a de Polignac number, because 238565473 - 2²¹ = 236468321 is a prime.

It is not a weakly prime, because it can be changed into another prime (238565477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119282736 + 119282737.

It is an arithmetic number, because the mean of its divisors is an integer number (119282737).

Almost surely, 2^238565473 is an apocalyptic number.

It is an amenable number.

238565473 is a deficient number, since it is larger than the sum of its proper divisors (1).

238565473 is an equidigital number, since it uses as much as digits as its factorization.

238565473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800, while the sum is 43.

The square root of 238565473 is about 15445.5648326631. The cubic root of 238565473 is about 620.2058568938.

The spelling of 238565473 in words is "two hundred thirty-eight million, five hundred sixty-five thousand, four hundred seventy-three".