239382217 has 6 divisors (see below), whose sum is σ = 247354314. Its totient is φ = 231659280.

The previous prime is 239382133. The next prime is 239382259. The reversal of 239382217 is 712283932.

239382217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 202464441 + 36917776 = 14229^2 + 6076^2 .

It is not a de Polignac number, because 239382217 - 2²⁷ = 105164489 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239382317) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123588 + ... + 125509.

It is an arithmetic number, because the mean of its divisors is an integer number (41225719).

Almost surely, 2^239382217 is an apocalyptic number.

It is an amenable number.

239382217 is a deficient number, since it is larger than the sum of its proper divisors (7972097).

239382217 is an equidigital number, since it uses as much as digits as its factorization.

239382217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249159 (or 249128 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The square root of 239382217 is about 15471.9816765662. The cubic root of 239382217 is about 620.9128220650.

The spelling of 239382217 in words is "two hundred thirty-nine million, three hundred eighty-two thousand, two hundred seventeen".