8202109 has 12 divisors (see below), whose sum is σ = 8830548. Its totient is φ = 7616000.

The previous prime is 8202097. The next prime is 8202127. The reversal of 8202109 is 9012028.

It can be written as a sum of positive squares in 6 ways, for example, as 3229209 + 4972900 = 1797^2 + 2230^2 .

It is not a de Polignac number, because 8202109 - 2⁷ = 8201981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8202109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8202149) 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, 29049 + ... + 29329.

It is an arithmetic number, because the mean of its divisors is an integer number (735879).

Almost surely, 2^8202109 is an apocalyptic number.

It is an amenable number.

8202109 is a deficient number, since it is larger than the sum of its proper divisors (628439).

8202109 is a wasteful number, since it uses less digits than its factorization.

8202109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 399 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 8202109 is about 2863.9324363539. The cubic root of 8202109 is about 201.6702540931.

The spelling of 8202109 in words is "eight million, two hundred two thousand, one hundred nine".