6731869 has 2 divisors, whose sum is σ = 6731870. Its totient is φ = 6731868.

The previous prime is 6731849. The next prime is 6731903. The reversal of 6731869 is 9681376.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5466244 + 1265625 = 2338^2 + 1125^2 .

It is a cyclic number.

It is not a de Polignac number, because 6731869 - 2¹⁵ = 6699101 is a prime.

It is a super-2 number, since 2×6731869² = 90636120466322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6731849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3365934 + 3365935.

It is an arithmetic number, because the mean of its divisors is an integer number (3365935).

Almost surely, 2^6731869 is an apocalyptic number.

It is an amenable number.

6731869 is a deficient number, since it is larger than the sum of its proper divisors (1).

6731869 is an equidigital number, since it uses as much as digits as its factorization.

6731869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 40.

The square root of 6731869 is about 2594.5845524862. The cubic root of 6731869 is about 188.8187936890.

The spelling of 6731869 in words is "six million, seven hundred thirty-one thousand, eight hundred sixty-nine".