386889 has 8 divisors (see below), whose sum is σ = 533760. Its totient is φ = 248976.

The previous prime is 386887. The next prime is 386891. The reversal of 386889 is 988683.

It is an interprime number because it is at equal distance from previous prime (386887) and next prime (386891).

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

It is not a de Polignac number, because 386889 - 2¹ = 386887 is a prime.

It is a Curzon number.

386889 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 386889.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 386889.

It is not an unprimeable number, because it can be changed into a prime (386887) 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, 2137 + ... + 2310.

It is an arithmetic number, because the mean of its divisors is an integer number (66720).

2³⁸⁶⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

386889 is a deficient number, since it is larger than the sum of its proper divisors (146871).

386889 is a wasteful number, since it uses less digits than its factorization.

386889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4479.

The product of its digits is 82944, while the sum is 42.

The square root of 386889 is about 622.0040192796. The cubic root of 386889 is about 72.8666484000.

It can be divided in two parts, 386 and 889, that added together give a triangular number (1275 = T₅₀).

The spelling of 386889 in words is "three hundred eighty-six thousand, eight hundred eighty-nine".