8986591621 has 12 divisors (see below), whose sum is σ = 10455645888. Its totient is φ = 7701425592.

The previous prime is 8986591589. The next prime is 8986591631. The reversal of 8986591621 is 1261956898.

It is not a de Polignac number, because 8986591621 - 2⁵ = 8986591589 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 (8986591631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 342450 + ... + 367756.

It is an arithmetic number, because the mean of its divisors is an integer number (871303824).

Almost surely, 2^8986591621 is an apocalyptic number.

It is an amenable number.

8986591621 is a deficient number, since it is larger than the sum of its proper divisors (1469054267).

8986591621 is a wasteful number, since it uses less digits than its factorization.

8986591621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32568 (or 32561 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 55.

The square root of 8986591621 is about 94797.6351023590. The cubic root of 8986591621 is about 2079.0503262238.

The spelling of 8986591621 in words is "eight billion, nine hundred eighty-six million, five hundred ninety-one thousand, six hundred twenty-one".