18827116 has 36 divisors (see below), whose sum is σ = 41395984. Its totient is φ = 7333920.

The previous prime is 18827113. The next prime is 18827129. The reversal of 18827116 is 61172881.

It is not an unprimeable number, because it can be changed into a prime (18827111) 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, 610 + ... + 6166.

Almost surely, 2^18827116 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 18827116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20697992).

18827116 is an abundant number, since it is smaller than the sum of its proper divisors (22568868).

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

18827116 is a wasteful number, since it uses less digits than its factorization.

18827116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5590 (or 5577 counting only the distinct ones).

The product of its digits is 5376, while the sum is 34.

The square root of 18827116 is about 4339.0224705572. The cubic root of 18827116 is about 266.0283573514.

Adding to 18827116 its reverse (61172881), we get a palindrome (79999997).

It can be divided in two parts, 1882 and 7116, that added together give a palindrome (8998).

The spelling of 18827116 in words is "eighteen million, eight hundred twenty-seven thousand, one hundred sixteen".