6779849 has 2 divisors, whose sum is σ = 6779850. Its totient is φ = 6779848.

The previous prime is 6779837. The next prime is 6779863. The reversal of 6779849 is 9489776.

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., 4080400 + 2699449 = 2020^2 + 1643^2 .

It is a cyclic number.

It is not a de Polignac number, because 6779849 - 2⁴ = 6779833 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 6779797 and 6779806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6779249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3389924 + 3389925.

It is an arithmetic number, because the mean of its divisors is an integer number (3389925).

Almost surely, 2^6779849 is an apocalyptic number.

It is an amenable number.

6779849 is a deficient number, since it is larger than the sum of its proper divisors (1).

6779849 is an equidigital number, since it uses as much as digits as its factorization.

6779849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 762048, while the sum is 50.

The square root of 6779849 is about 2603.8143174965. The cubic root of 6779849 is about 189.2663210768.

The spelling of 6779849 in words is "six million, seven hundred seventy-nine thousand, eight hundred forty-nine".