659712 has 36 divisors (see below), whose sum is σ = 1757840. Its totient is φ = 219648.

The previous prime is 659693. The next prime is 659713. The reversal of 659712 is 217956.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 659712.

It is not an unprimeable number, because it can be changed into a prime (659713) 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, 339 + ... + 1197.

2⁶⁵⁹⁷¹² 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 659712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (878920).

659712 is an abundant number, since it is smaller than the sum of its proper divisors (1098128).

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

659712 is an equidigital number, since it uses as much as digits as its factorization.

659712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878 (or 864 counting only the distinct ones).

The product of its digits is 3780, while the sum is 30.

The square root of 659712 is about 812.2265693758. The cubic root of 659712 is about 87.0532109417.

The spelling of 659712 in words is "six hundred fifty-nine thousand, seven hundred twelve".