609568 has 24 divisors (see below), whose sum is σ = 1230768. Its totient is φ = 297024.

The previous prime is 609541. The next prime is 609571. The reversal of 609568 is 865906.

It is an unprimeable 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 3 ways as a sum of consecutive naturals, for example, 1155 + ... + 1597.

It is an arithmetic number, because the mean of its divisors is an integer number (51282).

2⁶⁰⁹⁵⁶⁸ 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 609568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (615384).

609568 is an abundant number, since it is smaller than the sum of its proper divisors (621200).

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

609568 is a wasteful number, since it uses less digits than its factorization.

609568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 609568 is about 780.7483589480. The cubic root of 609568 is about 84.7892356100.

The spelling of 609568 in words is "six hundred nine thousand, five hundred sixty-eight".