389263 has 4 divisors (see below), whose sum is σ = 444880. Its totient is φ = 333648.

The previous prime is 389231. The next prime is 389269. The reversal of 389263 is 362983.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 389263 - 2⁵ = 389231 is a prime.

It is a Duffinian number.

389263 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389269) 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, 27798 + ... + 27811.

It is an arithmetic number, because the mean of its divisors is an integer number (111220).

2³⁸⁹²⁶³ is an apocalyptic number.

389263 is a deficient number, since it is larger than the sum of its proper divisors (55617).

389263 is an equidigital number, since it uses as much as digits as its factorization.

389263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55616.

The product of its digits is 7776, while the sum is 31.

The square root of 389263 is about 623.9094485580. The cubic root of 389263 is about 73.0153842600.

The spelling of 389263 in words is "three hundred eighty-nine thousand, two hundred sixty-three".