8067730221 has 16 divisors (see below), whose sum is σ = 11986651200. Its totient is φ = 5362980624.

The previous prime is 8067730211. The next prime is 8067730241. The reversal of 8067730221 is 1220377608.

It is not a de Polignac number, because 8067730221 - 2¹¹ = 8067728173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8067730211) 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, 421186 + ... + 439923.

It is an arithmetic number, because the mean of its divisors is an integer number (749165700).

Almost surely, 2^8067730221 is an apocalyptic number.

It is an amenable number.

8067730221 is a deficient number, since it is larger than the sum of its proper divisors (3918920979).

8067730221 is a wasteful number, since it uses less digits than its factorization.

8067730221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861465 (or 861459 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 8067730221 is about 89820.5445374275. The cubic root of 8067730221 is about 2005.6283311695.

The spelling of 8067730221 in words is "eight billion, sixty-seven million, seven hundred thirty thousand, two hundred twenty-one".