386217 has 12 divisors (see below), whose sum is σ = 600964. Its totient is φ = 237600.

The previous prime is 386173. The next prime is 386219. The reversal of 386217 is 712683.

386217 is a `hidden beast` number, since 38 + 621 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 68121 + 318096 = 261^2 + 564^2 .

It is not a de Polignac number, because 386217 - 2⁶ = 386153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386219) 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, 1534 + ... + 1767.

2³⁸⁶²¹⁷ is an apocalyptic number.

It is an amenable number.

386217 is a deficient number, since it is larger than the sum of its proper divisors (214747).

386217 is a wasteful number, since it uses less digits than its factorization.

386217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3320 (or 3317 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 386217 is about 621.4635950721. The cubic root of 386217 is about 72.8244358054.

The spelling of 386217 in words is "three hundred eighty-six thousand, two hundred seventeen".