618884 has 36 divisors (see below), whose sum is σ = 1334592. Its totient is φ = 245520.

The previous prime is 618883. The next prime is 618913. The reversal of 618884 is 488816.

618884 = T₄₁₇ + T₄₁₈ + ... + T₄₂₃.

618884 is nontrivially palindromic in base 6.

It is an Ulam number.

Its product of digits (12288) is a multiple of the sum of its prime factors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618883) 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, 19949 + ... + 19979.

It is an arithmetic number, because the mean of its divisors is an integer number (37072).

2⁶¹⁸⁸⁸⁴ 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 618884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (667296).

618884 is an abundant number, since it is smaller than the sum of its proper divisors (715708).

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

618884 is a wasteful number, since it uses less digits than its factorization.

618884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 63 counting only the distinct ones).

The product of its digits is 12288, while the sum is 35.

The square root of 618884 is about 786.6918075079. The cubic root of 618884 is about 85.2189969909.

The spelling of 618884 in words is "six hundred eighteen thousand, eight hundred eighty-four".