8996209920 has 504 divisors, whose sum is σ = 33457761792. Its totient is φ = 2314137600.

The previous prime is 8996209913. The next prime is 8996209921. The reversal of 8996209920 is 299026998.

8996209920 is a `hidden beast` number, since 8 + 9 + 9 + 620 + 9 + 9 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8996209921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 28926565 + ... + 28926875.

It is an arithmetic number, because the mean of its divisors is an integer number (66384448).

Almost surely, 2^8996209920 is an apocalyptic number.

8996209920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8996209920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16728880896).

8996209920 is an abundant number, since it is smaller than the sum of its proper divisors (24461551872).

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

8996209920 is an equidigital number, since it uses as much as digits as its factorization.

8996209920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381 (or 352 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 54.

The square root of 8996209920 is about 94848.3522260666. The cubic root of 8996209920 is about 2079.7917937551.

The spelling of 8996209920 in words is "eight billion, nine hundred ninety-six million, two hundred nine thousand, nine hundred twenty".