689500 has 48 divisors (see below), whose sum is σ = 1729728. Its totient is φ = 235200.

The previous prime is 689467. The next prime is 689509. The reversal of 689500 is 5986.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3402 + ... + 3598.

It is an arithmetic number, because the mean of its divisors is an integer number (36036).

2⁶⁸⁹⁵⁰⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 689500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (864864).

689500 is an abundant number, since it is smaller than the sum of its proper divisors (1040228).

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

689500 is a wasteful number, since it uses less digits than its factorization.

689500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 689500 is about 830.3613671168. The cubic root of 689500 is about 88.3442097283.

The spelling of 689500 in words is "six hundred eighty-nine thousand, five hundred".