618568 has 16 divisors (see below), whose sum is σ = 1169280. Its totient is φ = 306768.

The previous prime is 618559. The next prime is 618571. The reversal of 618568 is 865816.

It is a happy number.

It is a congruent number.

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, 1105 + ... + 1567.

It is an arithmetic number, because the mean of its divisors is an integer number (73080).

2⁶¹⁸⁵⁶⁸ is an apocalyptic number.

It is an amenable number.

618568 is a deficient number, since it is larger than the sum of its proper divisors (550712).

618568 is a wasteful number, since it uses less digits than its factorization.

618568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636 (or 632 counting only the distinct ones).

The product of its digits is 11520, while the sum is 34.

The square root of 618568 is about 786.4909408251. The cubic root of 618568 is about 85.2044903480.

The spelling of 618568 in words is "six hundred eighteen thousand, five hundred sixty-eight".