8905673988 has 72 divisors (see below), whose sum is σ = 22930689600. Its totient is φ = 2913664320.

The previous prime is 8905673929. The next prime is 8905673989. The reversal of 8905673988 is 8893765098.

It is a super-2 number, since 2×8905673988² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8905673989) 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 23 ways as a sum of consecutive naturals, for example, 572538 + ... + 587886.

It is an arithmetic number, because the mean of its divisors is an integer number (318481800).

Almost surely, 2^8905673988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8905673988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11465344800).

8905673988 is an abundant number, since it is smaller than the sum of its proper divisors (14025015612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8905673988 is a wasteful number, since it uses less digits than its factorization.

8905673988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15657 (or 15652 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

The square root of 8905673988 is about 94369.8786054110. The cubic root of 8905673988 is about 2072.7913975859.

The spelling of 8905673988 in words is "eight billion, nine hundred five million, six hundred seventy-three thousand, nine hundred eighty-eight".