8221860715 has 16 divisors (see below), whose sum is σ = 10318503168. Its totient is φ = 6277269856.

The previous prime is 8221860701. The next prime is 8221860727. The reversal of 8221860715 is 5170681228.

It is a cyclic number.

It is not a de Polignac number, because 8221860715 - 2⁵ = 8221860683 is a prime.

It is a super-2 number, since 2×8221860715² (a number of 21 digits) contains 22 as substring.

It is a Duffinian 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, 29749 + ... + 131638.

It is an arithmetic number, because the mean of its divisors is an integer number (644906448).

Almost surely, 2^8221860715 is an apocalyptic number.

8221860715 is a deficient number, since it is larger than the sum of its proper divisors (2096642453).

8221860715 is a wasteful number, since it uses less digits than its factorization.

8221860715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161858.

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 8221860715 is about 90674.4766458566. The cubic root of 8221860715 is about 2018.3200680802.

The spelling of 8221860715 in words is "eight billion, two hundred twenty-one million, eight hundred sixty thousand, seven hundred fifteen".