3821565606 has 16 divisors (see below), whose sum is σ = 7644020544. Its totient is φ = 1273706984.

The previous prime is 3821565599. The next prime is 3821565607. The reversal of 3821565606 is 6065651283.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3821565607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27445 + ... + 91631.

It is an arithmetic number, because the mean of its divisors is an integer number (477751284).

Almost surely, 2^3821565606 is an apocalyptic number.

3821565606 is an abundant number, since it is smaller than the sum of its proper divisors (3822454938).

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

3821565606 is a wasteful number, since it uses less digits than its factorization.

3821565606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74115.

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 3821565606 is about 61818.8127191068. The cubic root of 3821565606 is about 1563.4371951592.

The spelling of 3821565606 in words is "three billion, eight hundred twenty-one million, five hundred sixty-five thousand, six hundred six".