3197710981 has 2 divisors, whose sum is σ = 3197710982. Its totient is φ = 3197710980.

The previous prime is 3197710979. The next prime is 3197711057. The reversal of 3197710981 is 1890177913.

3197710981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1743814081 + 1453896900 = 41759^2 + 38130^2 .

It is a cyclic number.

It is not a de Polignac number, because 3197710981 - 2¹ = 3197710979 is a prime.

It is a super-2 number, since 2×3197710981² = 20450711036015964722, which contains 22 as substring.

Together with 3197710979, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3197711981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1598855490 + 1598855491.

It is an arithmetic number, because the mean of its divisors is an integer number (1598855491).

Almost surely, 2^3197710981 is an apocalyptic number.

It is an amenable number.

3197710981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3197710981 is an equidigital number, since it uses as much as digits as its factorization.

3197710981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256, while the sum is 46.

The square root of 3197710981 is about 56548.3066147873. The cubic root of 3197710981 is about 1473.2611482223.

The spelling of 3197710981 in words is "three billion, one hundred ninety-seven million, seven hundred ten thousand, nine hundred eighty-one".