238785 has 8 divisors (see below), whose sum is σ = 382080. Its totient is φ = 127344.

The previous prime is 238781. The next prime is 238789. The reversal of 238785 is 587832.

238785 = 150² + 151² + ... + 159².

It is an interprime number because it is at equal distance from previous prime (238781) and next prime (238789).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 238785 - 2² = 238781 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7945 + ... + 7974.

It is an arithmetic number, because the mean of its divisors is an integer number (47760).

2²³⁸⁷⁸⁵ is an apocalyptic number.

It is an amenable number.

238785 is a deficient number, since it is larger than the sum of its proper divisors (143295).

238785 is a wasteful number, since it uses less digits than its factorization.

238785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15927.

The product of its digits is 13440, while the sum is 33.

The square root of 238785 is about 488.6563209455. The cubic root of 238785 is about 62.0396035560.

The spelling of 238785 in words is "two hundred thirty-eight thousand, seven hundred eighty-five".