3967321996 has 48 divisors (see below), whose sum is σ = 7739268768. Its totient is φ = 1764172800.

The previous prime is 3967321993. The next prime is 3967322017. The reversal of 3967321996 is 6991237693.

3967321996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3967321993) 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, 867556 + ... + 872116.

It is an arithmetic number, because the mean of its divisors is an integer number (161234766).

Almost surely, 2^3967321996 is an apocalyptic number.

It is an amenable number.

3967321996 is a deficient number, since it is larger than the sum of its proper divisors (3771946772).

3967321996 is a wasteful number, since it uses less digits than its factorization.

3967321996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5002 (or 5000 counting only the distinct ones).

The product of its digits is 3306744, while the sum is 55.

The square root of 3967321996 is about 62986.6811000548. The cubic root of 3967321996 is about 1583.0664684959.

The spelling of 3967321996 in words is "three billion, nine hundred sixty-seven million, three hundred twenty-one thousand, nine hundred ninety-six".