611568 has 60 divisors (see below), whose sum is σ = 1779648. Its totient is φ = 195840.

The previous prime is 611561. The next prime is 611587. The reversal of 611568 is 865116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4396 + ... + 4532.

2⁶¹¹⁵⁶⁸ 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 611568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (889824).

611568 is an abundant number, since it is smaller than the sum of its proper divisors (1168080).

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

611568 is a wasteful number, since it uses less digits than its factorization.

611568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182 (or 173 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 611568 is about 782.0281324863. The cubic root of 611568 is about 84.8818658802.

The spelling of 611568 in words is "six hundred eleven thousand, five hundred sixty-eight".