6997849 has 2 divisors, whose sum is σ = 6997850. Its totient is φ = 6997848.

The previous prime is 6997843. The next prime is 6997867. The reversal of 6997849 is 9487996.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6594624 + 403225 = 2568^2 + 635^2 .

It is a cyclic number.

It is not a de Polignac number, because 6997849 - 2³ = 6997841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6997796 and 6997805.

It is not a weakly prime, because it can be changed into another prime (6997841) 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, 3498924 + 3498925.

It is an arithmetic number, because the mean of its divisors is an integer number (3498925).

Almost surely, 2^6997849 is an apocalyptic number.

It is an amenable number.

6997849 is a deficient number, since it is larger than the sum of its proper divisors (1).

6997849 is an equidigital number, since it uses as much as digits as its factorization.

6997849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 52.

The square root of 6997849 is about 2645.3447790411. The cubic root of 6997849 is about 191.2735223891.

The spelling of 6997849 in words is "six million, nine hundred ninety-seven thousand, eight hundred forty-nine".