386506 has 8 divisors (see below), whose sum is σ = 584100. Its totient is φ = 191808.

The previous prime is 386501. The next prime is 386521. The reversal of 386506 is 605683.

386506 is digitally balanced in base 3, 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 2 ways, for example, as 378225 + 8281 = 615^2 + 91^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (386501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351 + ... + 946.

2³⁸⁶⁵⁰⁶ is an apocalyptic number.

386506 is a deficient number, since it is larger than the sum of its proper divisors (197594).

386506 is a wasteful number, since it uses less digits than its factorization.

386506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1448.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 386506 is about 621.6960672226. The cubic root of 386506 is about 72.8425957298.

The spelling of 386506 in words is "three hundred eighty-six thousand, five hundred six".