689320 has 32 divisors (see below), whose sum is σ = 1634400. Its totient is φ = 260928.

The previous prime is 689317. The next prime is 689321. The reversal of 689320 is 23986.

It is not an unprimeable number, because it can be changed into a prime (689321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307 + ... + 1213.

It is an arithmetic number, because the mean of its divisors is an integer number (51075).

2⁶⁸⁹³²⁰ 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 689320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (817200).

689320 is an abundant number, since it is smaller than the sum of its proper divisors (945080).

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

689320 is a wasteful number, since it uses less digits than its factorization.

689320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937 (or 933 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 689320 is about 830.2529734966. The cubic root of 689320 is about 88.3365213833.

The spelling of 689320 in words is "six hundred eighty-nine thousand, three hundred twenty".