8818919 has 4 divisors (see below), whose sum is σ = 8827896. Its totient is φ = 8809944.

The previous prime is 8818897. The next prime is 8818933. The reversal of 8818919 is 9198188.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8818919 is a prime.

It is a super-2 number, since 2×8818919² = 155546664657122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8818919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8818969) 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 3 ways as a sum of consecutive naturals, for example, 2804 + ... + 5049.

It is an arithmetic number, because the mean of its divisors is an integer number (2206974).

Almost surely, 2^8818919 is an apocalyptic number.

8818919 is a deficient number, since it is larger than the sum of its proper divisors (8977).

8818919 is a wasteful number, since it uses less digits than its factorization.

8818919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8976.

The product of its digits is 41472, while the sum is 44.

The square root of 8818919 is about 2969.6664795899. Note that the first 3 decimals coincide. The cubic root of 8818919 is about 206.6038695204.

The spelling of 8818919 in words is "eight million, eight hundred eighteen thousand, nine hundred nineteen".