389275 has 12 divisors (see below), whose sum is σ = 504432. Its totient is φ = 297440.

The previous prime is 389273. The next prime is 389287. The reversal of 389275 is 572983.

It is not a de Polignac number, because 389275 - 2¹ = 389273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 389275.

It is not an unprimeable number, because it can be changed into a prime (389273) 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 11 ways as a sum of consecutive naturals, for example, 237 + ... + 913.

It is an arithmetic number, because the mean of its divisors is an integer number (42036).

2³⁸⁹²⁷⁵ is an apocalyptic number.

389275 is a deficient number, since it is larger than the sum of its proper divisors (115157).

389275 is a wasteful number, since it uses less digits than its factorization.

389275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710 (or 705 counting only the distinct ones).

The product of its digits is 15120, while the sum is 34.

The square root of 389275 is about 623.9190652641. The cubic root of 389275 is about 73.0161345459.

The spelling of 389275 in words is "three hundred eighty-nine thousand, two hundred seventy-five".