618868 has 24 divisors (see below), whose sum is σ = 1209600. Its totient is φ = 275328.

The previous prime is 618859. The next prime is 618869. The reversal of 618868 is 868816.

618868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618869) by changing a digit.

618868 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1053 + ... + 1531.

It is an arithmetic number, because the mean of its divisors is an integer number (50400).

2⁶¹⁸⁸⁶⁸ is an apocalyptic number.

618868 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

618868 is a deficient number, since it is larger than the sum of its proper divisors (590732).

618868 is a wasteful number, since it uses less digits than its factorization.

618868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519 (or 517 counting only the distinct ones).

The product of its digits is 18432, while the sum is 37.

The square root of 618868 is about 786.6816382756. The cubic root of 618868 is about 85.2182625960.

The spelling of 618868 in words is "six hundred eighteen thousand, eight hundred sixty-eight".