3196681 has 2 divisors, whose sum is σ = 3196682. Its totient is φ = 3196680.

The previous prime is 3196651. The next prime is 3196691. The reversal of 3196681 is 1866913.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2611456 + 585225 = 1616^2 + 765^2 .

It is a cyclic number.

It is not a de Polignac number, because 3196681 - 2⁵ = 3196649 is a prime.

It is a super-2 number, since 2×3196681² = 20437538831522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3196631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1598340 + 1598341.

It is an arithmetic number, because the mean of its divisors is an integer number (1598341).

Almost surely, 2^3196681 is an apocalyptic number.

It is an amenable number.

3196681 is a deficient number, since it is larger than the sum of its proper divisors (1).

3196681 is an equidigital number, since it uses as much as digits as its factorization.

3196681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 34.

The square root of 3196681 is about 1787.9264526261. The cubic root of 3196681 is about 147.3102952360.

The spelling of 3196681 in words is "three million, one hundred ninety-six thousand, six hundred eighty-one".