238619247 has 4 divisors (see below), whose sum is σ = 318159000. Its totient is φ = 159079496.

The previous prime is 238619239. The next prime is 238619257. The reversal of 238619247 is 742916832.

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 238619247 - 2³ = 238619239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 238619199 and 238619208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238619207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39769872 + ... + 39769877.

It is an arithmetic number, because the mean of its divisors is an integer number (79539750).

Almost surely, 2^238619247 is an apocalyptic number.

238619247 is a deficient number, since it is larger than the sum of its proper divisors (79539753).

238619247 is an equidigital number, since it uses as much as digits as its factorization.

238619247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79539752.

The product of its digits is 145152, while the sum is 42.

The square root of 238619247 is about 15447.3054931920. The cubic root of 238619247 is about 620.2524526897.

The spelling of 238619247 in words is "two hundred thirty-eight million, six hundred nineteen thousand, two hundred forty-seven".