83403707208 has 256 divisors, whose sum is σ = 231977779200. Its totient is φ = 24873246720.

The previous prime is 83403707207. The next prime is 83403707221. The reversal of 83403707208 is 80270730438.

It is a Cunningham number, because it is equal to 288797²-1.

It is a self number, because there is not a number n which added to its sum of digits gives 83403707208.

It is not an unprimeable number, because it can be changed into a prime (83403707203) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 220062363 + ... + 220062741.

It is an arithmetic number, because the mean of its divisors is an integer number (906163200).

Almost surely, 2^83403707208 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 83403707208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115988889600).

83403707208 is an abundant number, since it is smaller than the sum of its proper divisors (148574071992).

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

83403707208 is a wasteful number, since it uses less digits than its factorization.

83403707208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700 (or 696 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The spelling of 83403707208 in words is "eighty-three billion, four hundred three million, seven hundred seven thousand, two hundred eight".