3968865606 has 32 divisors (see below), whose sum is σ = 8263973088. Its totient is φ = 1269561600.

The previous prime is 3968865601. The next prime is 3968865617. The reversal of 3968865606 is 6065688693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3968865601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106245 + ... + 138656.

It is an arithmetic number, because the mean of its divisors is an integer number (258249159).

Almost surely, 2^3968865606 is an apocalyptic number.

3968865606 is an abundant number, since it is smaller than the sum of its proper divisors (4295107482).

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

3968865606 is a wasteful number, since it uses less digits than its factorization.

3968865606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245016.

The product of its (nonzero) digits is 11197440, while the sum is 57.

The square root of 3968865606 is about 62998.9333719231. The cubic root of 3968865606 is about 1583.2717556206.

The spelling of 3968865606 in words is "three billion, nine hundred sixty-eight million, eight hundred sixty-five thousand, six hundred six".