8389319900 has 72 divisors (see below), whose sum is σ = 19678365504. Its totient is φ = 3086035200.

The previous prime is 8389319891. The next prime is 8389319903. The reversal of 8389319900 is 99139838.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8389319903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 340394 + ... + 364206.

It is an arithmetic number, because the mean of its divisors is an integer number (273310632).

Almost surely, 2^8389319900 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 8389319900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9839182752).

8389319900 is an abundant number, since it is smaller than the sum of its proper divisors (11289045604).

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

8389319900 is a wasteful number, since it uses less digits than its factorization.

8389319900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24111 (or 24104 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 50.

The square root of 8389319900 is about 91593.2306450646. The cubic root of 8389319900 is about 2031.9308232671.

The spelling of 8389319900 in words is "eight billion, three hundred eighty-nine million, three hundred nineteen thousand, nine hundred".