389919 has 8 divisors (see below), whose sum is σ = 542592. Its totient is φ = 248600.

The previous prime is 389911. The next prime is 389923. The reversal of 389919 is 919983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 389919 - 2³ = 389911 is a prime.

It is a super-2 number, since 2×389919² = 304073653122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389911) 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 7 ways as a sum of consecutive naturals, for example, 2757 + ... + 2894.

It is an arithmetic number, because the mean of its divisors is an integer number (67824).

2³⁸⁹⁹¹⁹ is an apocalyptic number.

389919 is a deficient number, since it is larger than the sum of its proper divisors (152673).

389919 is a wasteful number, since it uses less digits than its factorization.

389919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5677.

The product of its digits is 17496, while the sum is 39.

The square root of 389919 is about 624.4349445699. The cubic root of 389919 is about 73.0563772910.

The spelling of 389919 in words is "three hundred eighty-nine thousand, nine hundred nineteen".