3785028856 has 96 divisors (see below), whose sum is σ = 8609811840. Its totient is φ = 1527666624.

The previous prime is 3785028839. The next prime is 3785028889. The reversal of 3785028856 is 6588205873.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1983855 + ... + 1985761.

It is an arithmetic number, because the mean of its divisors is an integer number (89685540).

Almost surely, 2^3785028856 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 3785028856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4304905920).

3785028856 is an abundant number, since it is smaller than the sum of its proper divisors (4824782984).

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

3785028856 is a wasteful number, since it uses less digits than its factorization.

3785028856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2033 (or 2006 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 52.

The square root of 3785028856 is about 61522.5881770265. The cubic root of 3785028856 is about 1558.4387261602.

The spelling of 3785028856 in words is "three billion, seven hundred eighty-five million, twenty-eight thousand, eight hundred fifty-six".