8909989410 has 128 divisors (see below), whose sum is σ = 24889503744. Its totient is φ = 1999330560.

The previous prime is 8909989393. The next prime is 8909989411. The reversal of 8909989410 is 149899098.

It is a happy number.

It is a super-2 number, since 2×8909989410² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8909989411) 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 63 ways as a sum of consecutive naturals, for example, 2909280 + ... + 2912340.

It is an arithmetic number, because the mean of its divisors is an integer number (194449248).

Almost surely, 2^8909989410 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8909989410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12444751872).

8909989410 is an abundant number, since it is smaller than the sum of its proper divisors (15979514334).

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

8909989410 is a wasteful number, since it uses less digits than its factorization.

8909989410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3328.

The product of its (nonzero) digits is 1679616, while the sum is 57.

The square root of 8909989410 is about 94392.7402399146. The cubic root of 8909989410 is about 2073.1261476632.

The spelling of 8909989410 in words is "eight billion, nine hundred nine million, nine hundred eighty-nine thousand, four hundred ten".