238847873 has 4 divisors (see below), whose sum is σ = 260561328. Its totient is φ = 217134420.

The previous prime is 238847849. The next prime is 238847887. The reversal of 238847873 is 378748832.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 238847873 - 2¹⁶ = 238782337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (238847813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10856711 + ... + 10856732.

It is an arithmetic number, because the mean of its divisors is an integer number (65140332).

Almost surely, 2^238847873 is an apocalyptic number.

It is an amenable number.

238847873 is a deficient number, since it is larger than the sum of its proper divisors (21713455).

238847873 is a wasteful number, since it uses less digits than its factorization.

238847873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21713454.

The product of its digits is 1806336, while the sum is 50.

The square root of 238847873 is about 15454.7039117545. The cubic root of 238847873 is about 620.4504816613.

The spelling of 238847873 in words is "two hundred thirty-eight million, eight hundred forty-seven thousand, eight hundred seventy-three".