6869647 has 2 divisors, whose sum is σ = 6869648. Its totient is φ = 6869646.

The previous prime is 6869633. The next prime is 6869671. The reversal of 6869647 is 7469686.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6869647 - 2¹¹ = 6867599 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6869597 and 6869606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6869627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3434823 + 3434824.

It is an arithmetic number, because the mean of its divisors is an integer number (3434824).

Almost surely, 2^6869647 is an apocalyptic number.

6869647 is a deficient number, since it is larger than the sum of its proper divisors (1).

6869647 is an equidigital number, since it uses as much as digits as its factorization.

6869647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 46.

The square root of 6869647 is about 2621.0011446010. The cubic root of 6869647 is about 190.0982594252.

The spelling of 6869647 in words is "six million, eight hundred sixty-nine thousand, six hundred forty-seven".