238507 has 4 divisors (see below), whose sum is σ = 251080. Its totient is φ = 225936.

The previous prime is 238499. The next prime is 238519. The reversal of 238507 is 705832.

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 238507 - 2³ = 238499 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238547) 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, 6258 + ... + 6295.

It is an arithmetic number, because the mean of its divisors is an integer number (62770).

2²³⁸⁵⁰⁷ is an apocalyptic number.

238507 is a deficient number, since it is larger than the sum of its proper divisors (12573).

238507 is a wasteful number, since it uses less digits than its factorization.

238507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12572.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 238507 is about 488.3717846068. The cubic root of 238507 is about 62.0155181413.

The spelling of 238507 in words is "two hundred thirty-eight thousand, five hundred seven".