3965329256 has 16 divisors (see below), whose sum is σ = 8497134240. Its totient is φ = 1699426800.

The previous prime is 3965329253. The next prime is 3965329261. The reversal of 3965329256 is 6529235693.

It is a happy number.

It is a super-2 number, since 2×3965329256² = 31447672216979027072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3965329253) 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 3 ways as a sum of consecutive naturals, for example, 35404670 + ... + 35404781.

It is an arithmetic number, because the mean of its divisors is an integer number (531070890).

Almost surely, 2^3965329256 is an apocalyptic number.

It is an amenable number.

3965329256 is an abundant number, since it is smaller than the sum of its proper divisors (4531804984).

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

3965329256 is a wasteful number, since it uses less digits than its factorization.

3965329256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70809464 (or 70809460 counting only the distinct ones).

The product of its digits is 2624400, while the sum is 50.

The square root of 3965329256 is about 62970.8603720800. The cubic root of 3965329256 is about 1582.8013721072.

The spelling of 3965329256 in words is "three billion, nine hundred sixty-five million, three hundred twenty-nine thousand, two hundred fifty-six".