818818 has 32 divisors (see below), whose sum is σ = 1653120. Its totient is φ = 293760.

The previous prime is 818813. The next prime is 818819.

818818 is nontrivially palindromic in base 10.

818818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

818818 is a strobogrammatic number because it is the same when read upside-down.

It is not an unprimeable number, because it can be changed into a prime (818813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1798 + ... + 2206.

It is an arithmetic number, because the mean of its divisors is an integer number (51660).

2⁸¹⁸⁸¹⁸ is an apocalyptic number.

818818 is an abundant number, since it is smaller than the sum of its proper divisors (834302).

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

818818 is a wasteful number, since it uses less digits than its factorization.

818818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442.

The product of its digits is 4096, while the sum is 34.

The square root of 818818 is about 904.8856281321. The cubic root of 818818 is about 93.5540214192.

It can be divided in two parts, 8 and 18818, that multiplied together give a square (150544 = 388²).

The spelling of 818818 in words is "eight hundred eighteen thousand, eight hundred eighteen".