389655 has 24 divisors (see below), whose sum is σ = 772512. Its totient is φ = 177984.

The previous prime is 389651. The next prime is 389659. The reversal of 389655 is 556983.

It is an interprime number because it is at equal distance from previous prime (389651) and next prime (389659).

It is not a de Polignac number, because 389655 - 2² = 389651 is a prime.

It is a nialpdrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389651) 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 23 ways as a sum of consecutive naturals, for example, 304 + ... + 933.

It is an arithmetic number, because the mean of its divisors is an integer number (32188).

2³⁸⁹⁶⁵⁵ is an apocalyptic number.

389655 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

389655 is a deficient number, since it is larger than the sum of its proper divisors (382857).

389655 is a wasteful number, since it uses less digits than its factorization.

389655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255 (or 1252 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 389655 is about 624.2235176601. The cubic root of 389655 is about 73.0398856282.

The spelling of 389655 in words is "three hundred eighty-nine thousand, six hundred fifty-five".