238282817 has 2 divisors, whose sum is σ = 238282818. Its totient is φ = 238282816.

The previous prime is 238282789. The next prime is 238282853. The reversal of 238282817 is 718282832.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 235898881 + 2383936 = 15359^2 + 1544^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238282817 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (238282717) 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 as a sum of consecutive naturals, namely, 119141408 + 119141409.

It is an arithmetic number, because the mean of its divisors is an integer number (119141409).

Almost surely, 2^238282817 is an apocalyptic number.

It is an amenable number.

238282817 is a deficient number, since it is larger than the sum of its proper divisors (1).

238282817 is an equidigital number, since it uses as much as digits as its factorization.

238282817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86016, while the sum is 41.

The square root of 238282817 is about 15436.4120507325. The cubic root of 238282817 is about 619.9608169826.

The spelling of 238282817 in words is "two hundred thirty-eight million, two hundred eighty-two thousand, eight hundred seventeen".