386645 has 8 divisors (see below), whose sum is σ = 530304. Its totient is φ = 265104.

The previous prime is 386641. The next prime is 386647. The reversal of 386645 is 546683.

386645 = 358² + 359² + 360².

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

It is not a de Polignac number, because 386645 - 2² = 386641 is a prime.

It is a Duffinian number.

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, 5489 + ... + 5558.

It is an arithmetic number, because the mean of its divisors is an integer number (66288).

2³⁸⁶⁶⁴⁵ is an apocalyptic number.

386645 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

386645 is a deficient number, since it is larger than the sum of its proper divisors (143659).

386645 is a wasteful number, since it uses less digits than its factorization.

386645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11059.

The product of its digits is 17280, while the sum is 32.

The square root of 386645 is about 621.8078481332. The cubic root of 386645 is about 72.8513268641.

The spelling of 386645 in words is "three hundred eighty-six thousand, six hundred forty-five".