3972147208 has 32 divisors (see below), whose sum is σ = 7526937600. Its totient is φ = 1964999808.

The previous prime is 3972147191. The next prime is 3972147217. The reversal of 3972147208 is 8027412793.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1772953 + ... + 1775191.

It is an arithmetic number, because the mean of its divisors is an integer number (235216800).

Almost surely, 2^3972147208 is an apocalyptic number.

It is an amenable number.

3972147208 is a deficient number, since it is larger than the sum of its proper divisors (3554790392).

3972147208 is a wasteful number, since it uses less digits than its factorization.

3972147208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4501 (or 4497 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 3972147208 is about 63024.9728917038. The cubic root of 3972147208 is about 1583.7080042404.

The spelling of 3972147208 in words is "three billion, nine hundred seventy-two million, one hundred forty-seven thousand, two hundred eight".