818888 has 24 divisors (see below), whose sum is σ = 1786950. Its totient is φ = 350784.

The previous prime is 818887. The next prime is 818897. The reversal of 818888 is 888818.

It can be written as a sum of positive squares in only one way, i.e., 550564 + 268324 = 742^2 + 518^2 .

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (818887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 653 + ... + 1436.

2⁸¹⁸⁸⁸⁸ is an apocalyptic number.

It is an amenable number.

818888 is an abundant number, since it is smaller than the sum of its proper divisors (968062).

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

818888 is a wasteful number, since it uses less digits than its factorization.

818888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2109 (or 2098 counting only the distinct ones).

The product of its digits is 32768, while the sum is 41.

The square root of 818888 is about 904.9243062268. The cubic root of 818888 is about 93.5566872924.

The spelling of 818888 in words is "eight hundred eighteen thousand, eight hundred eighty-eight".