368520217 has 12 divisors (see below), whose sum is σ = 401110380. Its totient is φ = 338415168.

The previous prime is 368520209. The next prime is 368520221. The reversal of 368520217 is 712025863.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 33593616 + 334926601 = 5796^2 + 18301^2 .

It is not a de Polignac number, because 368520217 - 2³ = 368520209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (368520287) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27759 + ... + 38827.

It is an arithmetic number, because the mean of its divisors is an integer number (33425865).

Almost surely, 2^368520217 is an apocalyptic number.

It is an amenable number.

368520217 is a deficient number, since it is larger than the sum of its proper divisors (32590163).

368520217 is a wasteful number, since it uses less digits than its factorization.

368520217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11292 (or 11279 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 368520217 is about 19196.8803976063. The cubic root of 368520217 is about 716.9470895626.

The spelling of 368520217 in words is "three hundred sixty-eight million, five hundred twenty thousand, two hundred seventeen".