3973197916 has 12 divisors (see below), whose sum is σ = 6975455760. Its totient is φ = 1980210560.

The previous prime is 3973197881. The next prime is 3973197929. The reversal of 3973197916 is 6197913793.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1595701 + ... + 1598188.

It is an arithmetic number, because the mean of its divisors is an integer number (581287980).

Almost surely, 2^3973197916 is an apocalyptic number.

It is an amenable number.

3973197916 is a deficient number, since it is larger than the sum of its proper divisors (3002257844).

3973197916 is a wasteful number, since it uses less digits than its factorization.

3973197916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3194204 (or 3194202 counting only the distinct ones).

The product of its digits is 1928934, while the sum is 55.

The square root of 3973197916 is about 63033.3079887134. The cubic root of 3973197916 is about 1583.8476321614.

The spelling of 3973197916 in words is "three billion, nine hundred seventy-three million, one hundred ninety-seven thousand, nine hundred sixteen".