238851 has 6 divisors (see below), whose sum is σ = 345020. Its totient is φ = 159228.

The previous prime is 238841. The next prime is 238853. The reversal of 238851 is 158832.

It is a happy number.

It is not a de Polignac number, because 238851 - 2⁷ = 238723 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 238851.

It is not an unprimeable number, because it can be changed into a prime (238853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13261 + ... + 13278.

2²³⁸⁸⁵¹ is an apocalyptic number.

238851 is a deficient number, since it is larger than the sum of its proper divisors (106169).

238851 is a wasteful number, since it uses less digits than its factorization.

238851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26545 (or 26542 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 238851 is about 488.7238484052. The cubic root of 238851 is about 62.0453189299.

It can be divided in two parts, 238 and 851, that added together give a square (1089 = 33²).

The spelling of 238851 in words is "two hundred thirty-eight thousand, eight hundred fifty-one".