238487 has 4 divisors (see below), whose sum is σ = 248880. Its totient is φ = 228096.

The previous prime is 238481. The next prime is 238499. The reversal of 238487 is 784832.

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 238487 - 2⁴ = 238471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5162 + ... + 5207.

It is an arithmetic number, because the mean of its divisors is an integer number (62220).

238487 is a Friedman number, since it can be written as 488^2+7^3, using all its digits and the basic arithmetic operations.

2²³⁸⁴⁸⁷ is an apocalyptic number.

238487 is a deficient number, since it is larger than the sum of its proper divisors (10393).

238487 is a wasteful number, since it uses less digits than its factorization.

238487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10392.

The product of its digits is 10752, while the sum is 32.

The square root of 238487 is about 488.3513079741. The cubic root of 238487 is about 62.0137846561.

The spelling of 238487 in words is "two hundred thirty-eight thousand, four hundred eighty-seven".