8211647005 has 16 divisors (see below), whose sum is σ = 10086842304. Its totient is φ = 6414186240.

The previous prime is 8211646997. The next prime is 8211647023. The reversal of 8211647005 is 5007461128.

It is not a de Polignac number, because 8211647005 - 2³ = 8211646997 is a prime.

It is a super-2 number, since 2×8211647005² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 789690 + ... + 800020.

It is an arithmetic number, because the mean of its divisors is an integer number (630427644).

Almost surely, 2^8211647005 is an apocalyptic number.

It is an amenable number.

8211647005 is a deficient number, since it is larger than the sum of its proper divisors (1875195299).

8211647005 is a wasteful number, since it uses less digits than its factorization.

8211647005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14076.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 8211647005 is about 90618.1383885147. The cubic root of 8211647005 is about 2017.4839605900.

The spelling of 8211647005 in words is "eight billion, two hundred eleven million, six hundred forty-seven thousand, five".