238347813 has 8 divisors (see below), whose sum is σ = 346687776. Its totient is φ = 144453200.

The previous prime is 238347797. The next prime is 238347899. The reversal of 238347813 is 318743832.

238347813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 238347813 - 2⁴ = 238347797 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238343813) 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, 3611298 + ... + 3611363.

It is an arithmetic number, because the mean of its divisors is an integer number (43335972).

Almost surely, 2^238347813 is an apocalyptic number.

It is an amenable number.

238347813 is a deficient number, since it is larger than the sum of its proper divisors (108339963).

238347813 is a wasteful number, since it uses less digits than its factorization.

238347813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7222675.

The product of its digits is 96768, while the sum is 39.

The square root of 238347813 is about 15438.5171891604. The cubic root of 238347813 is about 620.0171804119.

The spelling of 238347813 in words is "two hundred thirty-eight million, three hundred forty-seven thousand, eight hundred thirteen".