8223109 has 4 divisors (see below), whose sum is σ = 8378316. Its totient is φ = 8067904.

The previous prime is 8223107. The next prime is 8223113. The reversal of 8223109 is 9013228.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6235009 + 1988100 = 2497^2 + 1410^2 .

It is a cyclic number.

It is not a de Polignac number, because 8223109 - 2¹ = 8223107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8223107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77524 + ... + 77629.

It is an arithmetic number, because the mean of its divisors is an integer number (2094579).

Almost surely, 2^8223109 is an apocalyptic number.

It is an amenable number.

8223109 is a deficient number, since it is larger than the sum of its proper divisors (155207).

8223109 is a wasteful number, since it uses less digits than its factorization.

8223109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155206.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 8223109 is about 2867.5963802460. The cubic root of 8223109 is about 201.8422206808.

The spelling of 8223109 in words is "eight million, two hundred twenty-three thousand, one hundred nine".