386709 has 4 divisors (see below), whose sum is σ = 515616. Its totient is φ = 257804.

The previous prime is 386693. The next prime is 386713. The reversal of 386709 is 907683.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 386709 - 2⁴ = 386693 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 386709.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 386709.

It is not an unprimeable number, because it can be changed into a prime (386719) 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, 64449 + ... + 64454.

It is an arithmetic number, because the mean of its divisors is an integer number (128904).

2³⁸⁶⁷⁰⁹ is an apocalyptic number.

It is an amenable number.

386709 is a deficient number, since it is larger than the sum of its proper divisors (128907).

386709 is a wasteful number, since it uses less digits than its factorization.

386709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128906.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 386709 is about 621.8593088473. The cubic root of 386709 is about 72.8553462511.

The spelling of 386709 in words is "three hundred eighty-six thousand, seven hundred nine".