238634879 has 8 divisors (see below), whose sum is σ = 272885760. Its totient is φ = 204424056.

The previous prime is 238634873. The next prime is 238634897. The reversal of 238634879 is 978436832.

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 238634879 - 2¹⁶ = 238569343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238634873) 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, 4082 + ... + 22224.

It is an arithmetic number, because the mean of its divisors is an integer number (34110720).

Almost surely, 2^238634879 is an apocalyptic number.

238634879 is a deficient number, since it is larger than the sum of its proper divisors (34250881).

238634879 is a wasteful number, since it uses less digits than its factorization.

238634879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20029.

The product of its digits is 1741824, while the sum is 50.

The square root of 238634879 is about 15447.8114631167. The cubic root of 238634879 is about 620.2659966860.

The spelling of 238634879 in words is "two hundred thirty-eight million, six hundred thirty-four thousand, eight hundred seventy-nine".