618918 has 16 divisors (see below), whose sum is σ = 1280880. Its totient is φ = 199136.

The previous prime is 618913. The next prime is 618929. The reversal of 618918 is 819816.

618918 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 (618913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1605 + ... + 1952.

It is an arithmetic number, because the mean of its divisors is an integer number (80055).

2⁶¹⁸⁹¹⁸ is an apocalyptic number.

618918 is an abundant number, since it is smaller than the sum of its proper divisors (661962).

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

618918 is a wasteful number, since it uses less digits than its factorization.

618918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3591.

The product of its digits is 3456, while the sum is 33.

The square root of 618918 is about 786.7134166900. The cubic root of 618918 is about 85.2205575380.

The spelling of 618918 in words is "six hundred eighteen thousand, nine hundred eighteen".