238972017 has 8 divisors (see below), whose sum is σ = 325408896. Its totient is φ = 155924912.

The previous prime is 238972003. The next prime is 238972033. The reversal of 238972017 is 710279832.

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 238972017 - 2¹⁰ = 238970993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (238972117) 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, 847278 + ... + 847559.

It is an arithmetic number, because the mean of its divisors is an integer number (40676112).

Almost surely, 2^238972017 is an apocalyptic number.

It is an amenable number.

238972017 is a deficient number, since it is larger than the sum of its proper divisors (86436879).

238972017 is a wasteful number, since it uses less digits than its factorization.

238972017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694887.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 238972017 is about 15458.7197723485. The cubic root of 238972017 is about 620.5579585287.

The spelling of 238972017 in words is "two hundred thirty-eight million, nine hundred seventy-two thousand, seventeen".