6866047 has 2 divisors, whose sum is σ = 6866048. Its totient is φ = 6866046.

The previous prime is 6866039. The next prime is 6866051. The reversal of 6866047 is 7406686.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6866047 - 2³ = 6866039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6865997 and 6866015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6866017) 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, 3433023 + 3433024.

It is an arithmetic number, because the mean of its divisors is an integer number (3433024).

Almost surely, 2^6866047 is an apocalyptic number.

6866047 is a deficient number, since it is larger than the sum of its proper divisors (1).

6866047 is an equidigital number, since it uses as much as digits as its factorization.

6866047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 6866047 is about 2620.3142941258. The cubic root of 6866047 is about 190.0650469805.

The spelling of 6866047 in words is "six million, eight hundred sixty-six thousand, forty-seven".