8817818 has 4 divisors (see below), whose sum is σ = 13226730. Its totient is φ = 4408908.

The previous prime is 8817817. The next prime is 8817821. The reversal of 8817818 is 8187188.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6932689 + 1885129 = 2633^2 + 1373^2 .

It is a super-2 number, since 2×8817818² = 155507828562248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8817817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2204453 + ... + 2204456.

Almost surely, 2^8817818 is an apocalyptic number.

8817818 is a deficient number, since it is larger than the sum of its proper divisors (4408912).

8817818 is a wasteful number, since it uses less digits than its factorization.

8817818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4408911.

The product of its digits is 28672, while the sum is 41.

The square root of 8817818 is about 2969.4810994516. The cubic root of 8817818 is about 206.5952713265.

The spelling of 8817818 in words is "eight million, eight hundred seventeen thousand, eight hundred eighteen".