6844217797 has 2 divisors, whose sum is σ = 6844217798. Its totient is φ = 6844217796.

The previous prime is 6844217777. The next prime is 6844217839. The reversal of 6844217797 is 7977124486.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5265824356 + 1578393441 = 72566^2 + 39729^2 .

It is a cyclic number.

It is not a de Polignac number, because 6844217797 - 2⁷ = 6844217669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6844217767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3422108898 + 3422108899.

It is an arithmetic number, because the mean of its divisors is an integer number (3422108899).

Almost surely, 2^6844217797 is an apocalyptic number.

It is an amenable number.

6844217797 is a deficient number, since it is larger than the sum of its proper divisors (1).

6844217797 is an equidigital number, since it uses as much as digits as its factorization.

6844217797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4741632, while the sum is 55.

The square root of 6844217797 is about 82729.7878457331. The cubic root of 6844217797 is about 1898.6340872537.

The spelling of 6844217797 in words is "six billion, eight hundred forty-four million, two hundred seventeen thousand, seven hundred ninety-seven".