389660 has 12 divisors (see below), whose sum is σ = 818328. Its totient is φ = 155856.

The previous prime is 389659. The next prime is 389663. The reversal of 389660 is 66983.

It is a happy number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

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 389660.

It is not an unprimeable number, because it can be changed into a prime (389663) 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, 9722 + ... + 9761.

It is an arithmetic number, because the mean of its divisors is an integer number (68194).

2³⁸⁹⁶⁶⁰ is an apocalyptic number.

It is an amenable number.

389660 is an abundant number, since it is smaller than the sum of its proper divisors (428668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

389660 is a wasteful number, since it uses less digits than its factorization.

389660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19492 (or 19490 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 389660 is about 624.2275226230. The cubic root of 389660 is about 73.0401980395.

The spelling of 389660 in words is "three hundred eighty-nine thousand, six hundred sixty".