238771593 has 6 divisors (see below), whose sum is σ = 344892314. Its totient is φ = 159181056.

The previous prime is 238771591. The next prime is 238771607. The reversal of 238771593 is 395177832.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 130028409 + 108743184 = 11403^2 + 10428^2 .

It is not a de Polignac number, because 238771593 - 2¹ = 238771591 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238771591) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13265080 + ... + 13265097.

Almost surely, 2^238771593 is an apocalyptic number.

It is an amenable number.

238771593 is a deficient number, since it is larger than the sum of its proper divisors (106120721).

238771593 is a wasteful number, since it uses less digits than its factorization.

238771593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26530183 (or 26530180 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 238771593 is about 15452.2358576356. The cubic root of 238771593 is about 620.3844242704.

The spelling of 238771593 in words is "two hundred thirty-eight million, seven hundred seventy-one thousand, five hundred ninety-three".