389347 has 4 divisors (see below), whose sum is σ = 444976. Its totient is φ = 333720.

The previous prime is 389303. The next prime is 389357. The reversal of 389347 is 743983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 743983 = 19 ⋅39157.

It is a cyclic number.

It is not a de Polignac number, because 389347 - 2⁷ = 389219 is a prime.

It is a super-5 number, since 5×389347⁵ (a number of 29 digits) contains 55555 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (389357) 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, 27804 + ... + 27817.

It is an arithmetic number, because the mean of its divisors is an integer number (111244).

2³⁸⁹³⁴⁷ is an apocalyptic number.

389347 is a deficient number, since it is larger than the sum of its proper divisors (55629).

389347 is an equidigital number, since it uses as much as digits as its factorization.

389347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55628.

The product of its digits is 18144, while the sum is 34.

The square root of 389347 is about 623.9767623878. The cubic root of 389347 is about 73.0206359374.

The spelling of 389347 in words is "three hundred eighty-nine thousand, three hundred forty-seven".