8208005 has 16 divisors (see below), whose sum is σ = 10677744. Its totient is φ = 6021120.

The previous prime is 8208001. The next prime is 8208023. The reversal of 8208005 is 5008028.

It can be written as a sum of positive squares in 8 ways, for example, as 667489 + 7540516 = 817^2 + 2746^2 .

It is not a de Polignac number, because 8208005 - 2² = 8208001 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 (8208001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12485 + ... + 13125.

It is an arithmetic number, because the mean of its divisors is an integer number (667359).

Almost surely, 2^8208005 is an apocalyptic number.

It is an amenable number.

8208005 is a deficient number, since it is larger than the sum of its proper divisors (2469739).

8208005 is a wasteful number, since it uses less digits than its factorization.

8208005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 8208005 is about 2864.9616053274. The cubic root of 8208005 is about 201.7185653677.

Adding to 8208005 its sum of digits (23), we get a palindrome (8208028).

The spelling of 8208005 in words is "eight million, two hundred eight thousand, five".