389393 has 4 divisors (see below), whose sum is σ = 390720. Its totient is φ = 388068.

The previous prime is 389381. The next prime is 389399. The reversal of 389393 is 393983.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 393983 = 487 ⋅809.

It is a cyclic number.

It is not a de Polignac number, because 389393 - 2¹⁰ = 388369 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 389393.

It is not an unprimeable number, because it can be changed into a prime (389399) 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, 5 + ... + 882.

It is an arithmetic number, because the mean of its divisors is an integer number (97680).

2³⁸⁹³⁹³ is an apocalyptic number.

It is an amenable number.

389393 is a deficient number, since it is larger than the sum of its proper divisors (1327).

389393 is an equidigital number, since it uses as much as digits as its factorization.

389393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326.

The product of its digits is 17496, while the sum is 35.

The square root of 389393 is about 624.0136216462. The cubic root of 389393 is about 73.0235115360.

The spelling of 389393 in words is "three hundred eighty-nine thousand, three hundred ninety-three".