3972256712 has 12 divisors (see below), whose sum is σ = 7448315595. Its totient is φ = 1986039224.

The previous prime is 3972256681. The next prime is 3972256721. The reversal of 3972256712 is 2176522793.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 1986128356 + 1986128356 = 44566^2 + 44566^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=44566.

It is a Duffinian number.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 167123 + ... + 189405.

Almost surely, 2^3972256712 is an apocalyptic number.

It is an amenable number.

3972256712 is a deficient number, since it is larger than the sum of its proper divisors (3476058883).

3972256712 is an frugal number, since it uses more digits than its factorization.

3972256712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44572 (or 22285 counting only the distinct ones).

The product of its digits is 317520, while the sum is 44.

The square root of 3972256712 is about 63025.8416207194. The cubic root of 3972256712 is about 1583.7225573069.

The spelling of 3972256712 in words is "three billion, nine hundred seventy-two million, two hundred fifty-six thousand, seven hundred twelve".