6849281 has 2 divisors, whose sum is σ = 6849282. Its totient is φ = 6849280.

The previous prime is 6849277. The next prime is 6849287. The reversal of 6849281 is 1829486.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6677056 + 172225 = 2584^2 + 415^2 .

It is a cyclic number.

It is not a de Polignac number, because 6849281 - 2² = 6849277 is a prime.

It is a super-2 number, since 2×6849281² = 93825300433922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6849287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3424640 + 3424641.

It is an arithmetic number, because the mean of its divisors is an integer number (3424641).

Almost surely, 2^6849281 is an apocalyptic number.

It is an amenable number.

6849281 is a deficient number, since it is larger than the sum of its proper divisors (1).

6849281 is an equidigital number, since it uses as much as digits as its factorization.

6849281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 38.

The square root of 6849281 is about 2617.1131041665. The cubic root of 6849281 is about 189.9102161207.

The spelling of 6849281 in words is "six million, eight hundred forty-nine thousand, two hundred eighty-one".