3973196381 has 16 divisors (see below), whose sum is σ = 5214312960. Its totient is φ = 2933048880.

The previous prime is 3973196363. The next prime is 3973196399. The reversal of 3973196381 is 1836913793.

3973196381 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3973196363) and next prime (3973196399).

It is a cyclic number.

It is not a de Polignac number, because 3973196381 - 2⁶ = 3973196317 is a prime.

It is a super-2 number, since 2×3973196381² = 31572578963982994322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3973196581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1356431 + ... + 1359356.

It is an arithmetic number, because the mean of its divisors is an integer number (325894560).

Almost surely, 2^3973196381 is an apocalyptic number.

It is an amenable number.

3973196381 is a deficient number, since it is larger than the sum of its proper divisors (1241116579).

3973196381 is a wasteful number, since it uses less digits than its factorization.

3973196381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2715824.

The product of its digits is 734832, while the sum is 50.

The square root of 3973196381 is about 63033.2958126100. The cubic root of 3973196381 is about 1583.8474281942.

The spelling of 3973196381 in words is "three billion, nine hundred seventy-three million, one hundred ninety-six thousand, three hundred eighty-one".