238571 has 4 divisors (see below), whose sum is σ = 242544. Its totient is φ = 234600.

The previous prime is 238547. The next prime is 238573. The reversal of 238571 is 175832.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 238571 - 2¹⁰ = 237547 is a prime.

It is a super-2 number, since 2×238571² = 113832244082, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 238571.

It is not an unprimeable number, because it can be changed into a prime (238573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1895 + ... + 2016.

It is an arithmetic number, because the mean of its divisors is an integer number (60636).

2²³⁸⁵⁷¹ is an apocalyptic number.

238571 is a deficient number, since it is larger than the sum of its proper divisors (3973).

238571 is an equidigital number, since it uses as much as digits as its factorization.

238571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3972.

The product of its digits is 1680, while the sum is 26.

The square root of 238571 is about 488.4373040627. The cubic root of 238571 is about 62.0210646426.

The spelling of 238571 in words is "two hundred thirty-eight thousand, five hundred seventy-one".