8999392896 has 320 divisors, whose sum is σ = 30106581120. Its totient is φ = 2647738368.

The previous prime is 8999392889. The next prime is 8999392903. The reversal of 8999392896 is 6982939998.

It is an interprime number because it is at equal distance from previous prime (8999392889) and next prime (8999392903).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3098581 + ... + 3101483.

It is an arithmetic number, because the mean of its divisors is an integer number (94083066).

Almost surely, 2^8999392896 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 8999392896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15053290560).

8999392896 is an abundant number, since it is smaller than the sum of its proper divisors (21107188224).

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

8999392896 is a wasteful number, since it uses less digits than its factorization.

8999392896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2965 (or 2944 counting only the distinct ones).

The product of its digits is 136048896, while the sum is 72.

The square root of 8999392896 is about 94865.1300320618. The cubic root of 8999392896 is about 2080.0370506221.

The spelling of 8999392896 in words is "eight billion, nine hundred ninety-nine million, three hundred ninety-two thousand, eight hundred ninety-six".