6894427 has 2 divisors, whose sum is σ = 6894428. Its totient is φ = 6894426.

The previous prime is 6894421. The next prime is 6894439. The reversal of 6894427 is 7244986.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6894427 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6894427.

It is not a weakly prime, because it can be changed into another prime (6894421) 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, 3447213 + 3447214.

It is an arithmetic number, because the mean of its divisors is an integer number (3447214).

Almost surely, 2^6894427 is an apocalyptic number.

6894427 is a deficient number, since it is larger than the sum of its proper divisors (1).

6894427 is an equidigital number, since it uses as much as digits as its factorization.

6894427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 40.

The square root of 6894427 is about 2625.7240906082. The cubic root of 6894427 is about 190.3265575298.

The spelling of 6894427 in words is "six million, eight hundred ninety-four thousand, four hundred twenty-seven".