238905793 has 4 divisors (see below), whose sum is σ = 273035200. Its totient is φ = 204776388.

The previous prime is 238905773. The next prime is 238905827. The reversal of 238905793 is 397509832.

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 238905793 - 2¹³ = 238897601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238905763) 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, 17064693 + ... + 17064706.

It is an arithmetic number, because the mean of its divisors is an integer number (68258800).

Almost surely, 2^238905793 is an apocalyptic number.

It is an amenable number.

238905793 is a deficient number, since it is larger than the sum of its proper divisors (34129407).

238905793 is an equidigital number, since it uses as much as digits as its factorization.

238905793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34129406.

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 238905793 is about 15456.5776613065. The cubic root of 238905793 is about 620.5006301610.

The spelling of 238905793 in words is "two hundred thirty-eight million, nine hundred five thousand, seven hundred ninety-three".