238817 has 4 divisors (see below), whose sum is σ = 241920. Its totient is φ = 235716.

The previous prime is 238801. The next prime is 238829. The reversal of 238817 is 718832.

238817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 238817 - 2⁴ = 238801 is a prime.

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 238817.

It is not an unprimeable number, because it can be changed into a prime (238837) 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, 1433 + ... + 1590.

It is an arithmetic number, because the mean of its divisors is an integer number (60480).

2²³⁸⁸¹⁷ is an apocalyptic number.

It is an amenable number.

238817 is a deficient number, since it is larger than the sum of its proper divisors (3103).

238817 is an equidigital number, since it uses as much as digits as its factorization.

238817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3102.

The product of its digits is 2688, while the sum is 29.

The square root of 238817 is about 488.6890626973. The cubic root of 238817 is about 62.0423747779.

The spelling of 238817 in words is "two hundred thirty-eight thousand, eight hundred seventeen".