238765 has 12 divisors (see below), whose sum is σ = 309204. Its totient is φ = 176384.

The previous prime is 238759. The next prime is 238781. The reversal of 238765 is 567832.

It can be written as a sum of positive squares in 6 ways, for example, as 21609 + 217156 = 147^2 + 466^2 .

It is not a de Polignac number, because 238765 - 2¹⁷ = 107693 is a prime.

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

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4479 + ... + 4531.

It is an arithmetic number, because the mean of its divisors is an integer number (25767).

2²³⁸⁷⁶⁵ is an apocalyptic number.

It is an amenable number.

238765 is a deficient number, since it is larger than the sum of its proper divisors (70439).

238765 is an equidigital number, since it uses as much as digits as its factorization.

238765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 75 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 238765 is about 488.6358562365. The cubic root of 238765 is about 62.0378714166.

The spelling of 238765 in words is "two hundred thirty-eight thousand, seven hundred sixty-five".