238739 has 4 divisors (see below), whose sum is σ = 240240. Its totient is φ = 237240.

The previous prime is 238729. The next prime is 238747. The reversal of 238739 is 937832.

238739 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.

It is a cyclic number.

It is not a de Polignac number, because 238739 - 2⁴ = 238723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238709) 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, 479 + ... + 840.

It is an arithmetic number, because the mean of its divisors is an integer number (60060).

2²³⁸⁷³⁹ is an apocalyptic number.

238739 is a deficient number, since it is larger than the sum of its proper divisors (1501).

238739 is a wasteful number, since it uses less digits than its factorization.

238739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500.

The product of its digits is 9072, while the sum is 32.

The square root of 238739 is about 488.6092508334. The cubic root of 238739 is about 62.0356194908.

The spelling of 238739 in words is "two hundred thirty-eight thousand, seven hundred thirty-nine".