8819109 has 12 divisors (see below), whose sum is σ = 13718796. Its totient is φ = 5427072.

The previous prime is 8819089. The next prime is 8819113. The reversal of 8819109 is 9019188.

It can be written as a sum of positive squares in 2 ways, for example, as 4730625 + 4088484 = 2175^2 + 2022^2 .

It is not a de Polignac number, because 8819109 - 2¹⁶ = 8753573 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8819119) 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, 37572 + ... + 37805.

It is an arithmetic number, because the mean of its divisors is an integer number (1143233).

Almost surely, 2^8819109 is an apocalyptic number.

It is an amenable number.

8819109 is a deficient number, since it is larger than the sum of its proper divisors (4899687).

8819109 is a wasteful number, since it uses less digits than its factorization.

8819109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75396 (or 75393 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 36.

The square root of 8819109 is about 2969.6984695420. The cubic root of 8819109 is about 206.6053532417.

The spelling of 8819109 in words is "eight million, eight hundred nineteen thousand, one hundred nine".