389605 has 8 divisors (see below), whose sum is σ = 474912. Its totient is φ = 306768.

The previous prime is 389591. The next prime is 389621. The reversal of 389605 is 506983.

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 389605 - 2¹³ = 381413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247 + ... + 916.

It is an arithmetic number, because the mean of its divisors is an integer number (59364).

2³⁸⁹⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

389605 is a deficient number, since it is larger than the sum of its proper divisors (85307).

389605 is a wasteful number, since it uses less digits than its factorization.

389605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 389605 is about 624.1834666186. The cubic root of 389605 is about 73.0367613682.

The spelling of 389605 in words is "three hundred eighty-nine thousand, six hundred five".