386661 has 8 divisors (see below), whose sum is σ = 562464. Its totient is φ = 234320.

The previous prime is 386651. The next prime is 386677. The reversal of 386661 is 166683.

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

It is a cyclic number.

It is not a de Polignac number, because 386661 - 2⁵ = 386629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386611) 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, 5826 + ... + 5891.

It is an arithmetic number, because the mean of its divisors is an integer number (70308).

2³⁸⁶⁶⁶¹ is an apocalyptic number.

It is an amenable number.

386661 is a deficient number, since it is larger than the sum of its proper divisors (175803).

386661 is a wasteful number, since it uses less digits than its factorization.

386661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11731.

The product of its digits is 5184, while the sum is 30.

The square root of 386661 is about 621.8207137110. The cubic root of 386661 is about 72.8523317524.

The spelling of 386661 in words is "three hundred eighty-six thousand, six hundred sixty-one".