8211005 has 16 divisors (see below), whose sum is σ = 10805184. Its totient is φ = 5940480.

The previous prime is 8210987. The next prime is 8211011. The reversal of 8211005 is 5001128.

It is not a de Polignac number, because 8211005 - 2⁸ = 8210749 is a prime.

It is a super-2 number, since 2×8211005² = 134841206220050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18314 + ... + 18756.

It is an arithmetic number, because the mean of its divisors is an integer number (675324).

Almost surely, 2^8211005 is an apocalyptic number.

It is an amenable number.

8211005 is a deficient number, since it is larger than the sum of its proper divisors (2594179).

8211005 is a wasteful number, since it uses less digits than its factorization.

8211005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 8211005 is about 2865.4851247215. The cubic root of 8211005 is about 201.7431382078.

The spelling of 8211005 in words is "eight million, two hundred eleven thousand, five".