3197666893 has 2 divisors, whose sum is σ = 3197666894. Its totient is φ = 3197666892.

The previous prime is 3197666869. The next prime is 3197666903. The reversal of 3197666893 is 3986667913.

3197666893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3197563209 + 103684 = 56547^2 + 322^2 .

It is a cyclic number.

It is not a de Polignac number, because 3197666893 - 2¹³ = 3197658701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3197666803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1598833446 + 1598833447.

It is an arithmetic number, because the mean of its divisors is an integer number (1598833447).

Almost surely, 2^3197666893 is an apocalyptic number.

It is an amenable number.

3197666893 is a deficient number, since it is larger than the sum of its proper divisors (1).

3197666893 is an equidigital number, since it uses as much as digits as its factorization.

3197666893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8817984, while the sum is 58.

The square root of 3197666893 is about 56547.9167874467. The cubic root of 3197666893 is about 1473.2543773961.

The spelling of 3197666893 in words is "three billion, one hundred ninety-seven million, six hundred sixty-six thousand, eight hundred ninety-three".