386646 has 16 divisors (see below), whose sum is σ = 832944. Its totient is φ = 118944.

The previous prime is 386641. The next prime is 386647. The reversal of 386646 is 646683.

386646 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386641) 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 7 ways as a sum of consecutive naturals, for example, 2401 + ... + 2556.

It is an arithmetic number, because the mean of its divisors is an integer number (52059).

2³⁸⁶⁶⁴⁶ is an apocalyptic number.

386646 is an abundant number, since it is smaller than the sum of its proper divisors (446298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

386646 is a wasteful number, since it uses less digits than its factorization.

386646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4975.

The product of its digits is 20736, while the sum is 33.

The square root of 386646 is about 621.8086522396. The cubic root of 386646 is about 72.8513896704.

The spelling of 386646 in words is "three hundred eighty-six thousand, six hundred forty-six".