389247 has 4 divisors (see below), whose sum is σ = 519000. Its totient is φ = 259496.

The previous prime is 389231. The next prime is 389269. The reversal of 389247 is 742983.

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

It is a cyclic number.

It is not a de Polignac number, because 389247 - 2⁴ = 389231 is a prime.

It is a D-number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 389247.

It is not an unprimeable number, because it can be changed into a prime (389227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64872 + ... + 64877.

It is an arithmetic number, because the mean of its divisors is an integer number (129750).

2³⁸⁹²⁴⁷ is an apocalyptic number.

389247 is a deficient number, since it is larger than the sum of its proper divisors (129753).

389247 is a wasteful number, since it uses less digits than its factorization.

389247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129752.

The product of its digits is 12096, while the sum is 33.

The square root of 389247 is about 623.8966260527. The cubic root of 389247 is about 73.0143838548.

It can be divided in two parts, 389 and 247, that added together give a palindrome (636).

The spelling of 389247 in words is "three hundred eighty-nine thousand, two hundred forty-seven".