6873949 has 2 divisors, whose sum is σ = 6873950. Its totient is φ = 6873948.

The previous prime is 6873943. The next prime is 6873961. The reversal of 6873949 is 9493786.

6873949 is digitally balanced in base 3, 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., 3960100 + 2913849 = 1990^2 + 1707^2 .

It is a cyclic number.

It is not a de Polignac number, because 6873949 - 2⁷ = 6873821 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6873899 and 6873908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6873943) 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, 3436974 + 3436975.

It is an arithmetic number, because the mean of its divisors is an integer number (3436975).

Almost surely, 2^6873949 is an apocalyptic number.

It is an amenable number.

6873949 is a deficient number, since it is larger than the sum of its proper divisors (1).

6873949 is an equidigital number, since it uses as much as digits as its factorization.

6873949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 46.

The square root of 6873949 is about 2621.8216949289. The cubic root of 6873949 is about 190.1379330824.

The spelling of 6873949 in words is "six million, eight hundred seventy-three thousand, nine hundred forty-nine".