3821784064 has 88 divisors (see below), whose sum is σ = 8787492608. Its totient is φ = 1627361280.

The previous prime is 3821784041. The next prime is 3821784079. The reversal of 3821784064 is 4604871283.

It is a self number, because there is not a number n which added to its sum of digits gives 3821784064.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1166749 + ... + 1170019.

Almost surely, 2^3821784064 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 3821784064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4393746304).

3821784064 is an abundant number, since it is smaller than the sum of its proper divisors (4965708544).

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

3821784064 is a wasteful number, since it uses less digits than its factorization.

3821784064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3461 (or 3443 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 43.

The square root of 3821784064 is about 61820.5796155293. The cubic root of 3821784064 is about 1563.4669856422.

The spelling of 3821784064 in words is "three billion, eight hundred twenty-one million, seven hundred eighty-four thousand, sixty-four".