238708685 has 8 divisors (see below), whose sum is σ = 301526880. Its totient is φ = 180915984.

The previous prime is 238708669. The next prime is 238708693. The reversal of 238708685 is 586807832.

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 238708685 - 2⁴ = 238708669 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1256267 + ... + 1256456.

It is an arithmetic number, because the mean of its divisors is an integer number (37690860).

Almost surely, 2^238708685 is an apocalyptic number.

It is an amenable number.

238708685 is a deficient number, since it is larger than the sum of its proper divisors (62818195).

238708685 is a wasteful number, since it uses less digits than its factorization.

238708685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2512747.

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 238708685 is about 15450.2001605157. The cubic root of 238708685 is about 620.3299362542.

The spelling of 238708685 in words is "two hundred thirty-eight million, seven hundred eight thousand, six hundred eighty-five".