3181679 has 2 divisors, whose sum is σ = 3181680. Its totient is φ = 3181678.

The previous prime is 3181663. The next prime is 3181681. The reversal of 3181679 is 9761813.

3181679 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 is a cyclic number.

It is not a de Polignac number, because 3181679 - 2⁴ = 3181663 is a prime.

It is a Sophie Germain prime.

Together with 3181681, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3181609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1590839 + 1590840.

It is an arithmetic number, because the mean of its divisors is an integer number (1590840).

Almost surely, 2^3181679 is an apocalyptic number.

3181679 is a deficient number, since it is larger than the sum of its proper divisors (1).

3181679 is an equidigital number, since it uses as much as digits as its factorization.

3181679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 35.

The square root of 3181679 is about 1783.7261561125. The cubic root of 3181679 is about 147.0794917680.

The spelling of 3181679 in words is "three million, one hundred eighty-one thousand, six hundred seventy-nine".