238447 has 8 divisors (see below), whose sum is σ = 265680. Its totient is φ = 212160.

The previous prime is 238439. The next prime is 238451. The reversal of 238447 is 744832.

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

It is a cyclic number.

It is not a de Polignac number, because 238447 - 2³ = 238439 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 (238417) 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, 379 + ... + 787.

It is an arithmetic number, because the mean of its divisors is an integer number (33210).

2²³⁸⁴⁴⁷ is an apocalyptic number.

238447 is a deficient number, since it is larger than the sum of its proper divisors (27233).

238447 is a wasteful number, since it uses less digits than its factorization.

238447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473.

The product of its digits is 5376, while the sum is 28.

The square root of 238447 is about 488.3103521327. The cubic root of 238447 is about 62.0103173950.

The spelling of 238447 in words is "two hundred thirty-eight thousand, four hundred forty-seven".