8484731221 has 8 divisors (see below), whose sum is σ = 8565485760. Its totient is φ = 8404076352.

The previous prime is 8484731159. The next prime is 8484731261. The reversal of 8484731221 is 1221374848.

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 8484731221 - 2¹¹ = 8484729173 is a prime.

It is a super-2 number, since 2×8484731221² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8484731261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152086 + ... + 200248.

It is an arithmetic number, because the mean of its divisors is an integer number (1070685720).

Almost surely, 2^8484731221 is an apocalyptic number.

It is an amenable number.

8484731221 is a deficient number, since it is larger than the sum of its proper divisors (80754539).

8484731221 is a wasteful number, since it uses less digits than its factorization.

8484731221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49835.

The product of its digits is 86016, while the sum is 40.

The square root of 8484731221 is about 92112.6007720985. The cubic root of 8484731221 is about 2039.6048206877.

The spelling of 8484731221 in words is "eight billion, four hundred eighty-four million, seven hundred thirty-one thousand, two hundred twenty-one".