3973822216 has 64 divisors (see below), whose sum is σ = 9709822080. Its totient is φ = 1479582720.

The previous prime is 3973822189. The next prime is 3973822219. The reversal of 3973822216 is 6122283793.

It is not an unprimeable number, because it can be changed into a prime (3973822219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148170 + ... + 172921.

It is an arithmetic number, because the mean of its divisors is an integer number (151715970).

Almost surely, 2^3973822216 is an apocalyptic number.

It is an amenable number.

3973822216 is an abundant number, since it is smaller than the sum of its proper divisors (5735999864).

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

3973822216 is a wasteful number, since it uses less digits than its factorization.

3973822216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321134 (or 321130 counting only the distinct ones).

The product of its digits is 217728, while the sum is 43.

The square root of 3973822216 is about 63038.2599379139. The cubic root of 3973822216 is about 1583.9305833352.

The spelling of 3973822216 in words is "three billion, nine hundred seventy-three million, eight hundred twenty-two thousand, two hundred sixteen".