389455 has 16 divisors (see below), whose sum is σ = 522144. Its totient is φ = 276480.

The previous prime is 389447. The next prime is 389461. The reversal of 389455 is 554983.

It is not a de Polignac number, because 389455 - 2³ = 389447 is a prime.

It is a Duffinian number.

389455 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 389455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3967 + ... + 4063.

It is an arithmetic number, because the mean of its divisors is an integer number (32634).

2³⁸⁹⁴⁵⁵ is an apocalyptic number.

389455 is a deficient number, since it is larger than the sum of its proper divisors (132689).

389455 is a wasteful number, since it uses less digits than its factorization.

389455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186.

The product of its digits is 21600, while the sum is 34.

The square root of 389455 is about 624.0632980716. The cubic root of 389455 is about 73.0273869844.

The spelling of 389455 in words is "three hundred eighty-nine thousand, four hundred fifty-five".