8899647444 has 96 divisors (see below), whose sum is σ = 23983155840. Its totient is φ = 2851490304.

The previous prime is 8899647401. The next prime is 8899647473. The reversal of 8899647444 is 4447469988.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 318252 + ... + 345084.

It is an arithmetic number, because the mean of its divisors is an integer number (249824540).

Almost surely, 2^8899647444 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 8899647444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11991577920).

8899647444 is an abundant number, since it is smaller than the sum of its proper divisors (15083508396).

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

8899647444 is a wasteful number, since it uses less digits than its factorization.

8899647444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26966 (or 26958 counting only the distinct ones).

The product of its digits is 55738368, while the sum is 63.

The square root of 8899647444 is about 94337.9427589981. The cubic root of 8899647444 is about 2072.3237336600.

The spelling of 8899647444 in words is "eight billion, eight hundred ninety-nine million, six hundred forty-seven thousand, four hundred forty-four".