8493527221 has 8 divisors (see below), whose sum is σ = 8917549920. Its totient is φ = 8078247408.

The previous prime is 8493527179. The next prime is 8493527257. The reversal of 8493527221 is 1227253948.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8493527221 - 2⁹ = 8493526709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8493527261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2183731 + ... + 2187616.

It is an arithmetic number, because the mean of its divisors is an integer number (1114693740).

Almost surely, 2^8493527221 is an apocalyptic number.

It is an amenable number.

8493527221 is a deficient number, since it is larger than the sum of its proper divisors (424022699).

8493527221 is a wasteful number, since it uses less digits than its factorization.

8493527221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4371443.

The product of its digits is 241920, while the sum is 43.

The square root of 8493527221 is about 92160.3343147148. The cubic root of 8493527221 is about 2040.3093870276.

The spelling of 8493527221 in words is "eight billion, four hundred ninety-three million, five hundred twenty-seven thousand, two hundred twenty-one".