386789 has 4 divisors (see below), whose sum is σ = 416556. Its totient is φ = 357024.

The previous prime is 386777. The next prime is 386809. The reversal of 386789 is 987683.

386789 is nontrivially palindromic in base 16.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 987683 = 17 ⋅58099.

It can be written as a sum of positive squares in 2 ways, for example, as 240100 + 146689 = 490^2 + 383^2 .

It is a cyclic number.

It is not a de Polignac number, because 386789 - 2¹² = 382693 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 11.

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 386789.

It is not an unprimeable number, because it can be changed into a prime (386719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14864 + ... + 14889.

It is an arithmetic number, because the mean of its divisors is an integer number (104139).

2³⁸⁶⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

386789 is a deficient number, since it is larger than the sum of its proper divisors (29767).

386789 is a wasteful number, since it uses less digits than its factorization.

386789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29766.

The product of its digits is 72576, while the sum is 41.

The square root of 386789 is about 621.9236287520. The cubic root of 386789 is about 72.8603698613.

The spelling of 386789 in words is "three hundred eighty-six thousand, seven hundred eighty-nine".