659684982 has 48 divisors (see below), whose sum is σ = 1500271920. Its totient is φ = 193005120.

The previous prime is 659684981. The next prime is 659685029. The reversal of 659684982 is 289486956.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (659684981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5388 + ... + 36720.

It is an arithmetic number, because the mean of its divisors is an integer number (31255665).

Almost surely, 2^659684982 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 659684982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (750135960).

659684982 is an abundant number, since it is smaller than the sum of its proper divisors (840586938).

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

659684982 is a wasteful number, since it uses less digits than its factorization.

659684982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31389 (or 31378 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 57.

The square root of 659684982 is about 25684.3333960607. Note that the first 4 decimals coincide. The cubic root of 659684982 is about 870.5202252625.

The spelling of 659684982 in words is "six hundred fifty-nine million, six hundred eighty-four thousand, nine hundred eighty-two".