238479 has 4 divisors (see below), whose sum is σ = 317976. Its totient is φ = 158984.

The previous prime is 238477. The next prime is 238481. The reversal of 238479 is 974832.

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

It is an interprime number because it is at equal distance from previous prime (238477) and next prime (238481).

It is a cyclic number.

It is not a de Polignac number, because 238479 - 2¹ = 238477 is a prime.

It is a D-number.

238479 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39744 + ... + 39749.

It is an arithmetic number, because the mean of its divisors is an integer number (79494).

2²³⁸⁴⁷⁹ is an apocalyptic number.

238479 is a deficient number, since it is larger than the sum of its proper divisors (79497).

238479 is an equidigital number, since it uses as much as digits as its factorization.

238479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79496.

The product of its digits is 12096, while the sum is 33.

The square root of 238479 is about 488.3431170806. The cubic root of 238479 is about 62.0130912349.

It can be divided in two parts, 238 and 479, that added together give a palindrome (717).

The spelling of 238479 in words is "two hundred thirty-eight thousand, four hundred seventy-nine".