3972147222 has 16 divisors (see below), whose sum is σ = 8094187440. Its totient is φ = 1299066912.

The previous prime is 3972147217. The next prime is 3972147233. The reversal of 3972147222 is 2227412793.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6245197 + ... + 6245832.

It is an arithmetic number, because the mean of its divisors is an integer number (505886715).

Almost surely, 2^3972147222 is an apocalyptic number.

3972147222 is an abundant number, since it is smaller than the sum of its proper divisors (4122040218).

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

3972147222 is a wasteful number, since it uses less digits than its factorization.

3972147222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12491087.

The product of its digits is 84672, while the sum is 39.

The square root of 3972147222 is about 63024.9730027709. The cubic root of 3972147222 is about 1583.7080061010.

The spelling of 3972147222 in words is "three billion, nine hundred seventy-two million, one hundred forty-seven thousand, two hundred twenty-two".