8084580221 has 4 divisors (see below), whose sum is σ = 8085018972. Its totient is φ = 8084141472.

The previous prime is 8084580193. The next prime is 8084580239. The reversal of 8084580221 is 1220854808.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5931156196 + 2153424025 = 77014^2 + 46405^2 .

It is a cyclic number.

It is not a de Polignac number, because 8084580221 - 2⁶ = 8084580157 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 (8084580271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190466 + ... + 229011.

It is an arithmetic number, because the mean of its divisors is an integer number (2021254743).

Almost surely, 2^8084580221 is an apocalyptic number.

It is an amenable number.

8084580221 is a deficient number, since it is larger than the sum of its proper divisors (438751).

8084580221 is a wasteful number, since it uses less digits than its factorization.

8084580221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438750.

The product of its (nonzero) digits is 40960, while the sum is 38.

The square root of 8084580221 is about 89914.2937524396. The cubic root of 8084580221 is about 2007.0236569971.

The spelling of 8084580221 in words is "eight billion, eighty-four million, five hundred eighty thousand, two hundred twenty-one".