659982 has 16 divisors (see below), whose sum is σ = 1365840. Its totient is φ = 212352.

The previous prime is 659963. The next prime is 659983. The reversal of 659982 is 289956.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 659982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (659983) by changing a digit.

659982 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 1723 + ... + 2070.

It is an arithmetic number, because the mean of its divisors is an integer number (85365).

2⁶⁵⁹⁹⁸² is an apocalyptic number.

659982 is an abundant number, since it is smaller than the sum of its proper divisors (705858).

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

659982 is a wasteful number, since it uses less digits than its factorization.

659982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3827.

The product of its digits is 38880, while the sum is 39.

The square root of 659982 is about 812.3927621539. The cubic root of 659982 is about 87.0650853966.

The spelling of 659982 in words is "six hundred fifty-nine thousand, nine hundred eighty-two".