6997841 has 2 divisors, whose sum is σ = 6997842. Its totient is φ = 6997840.

The previous prime is 6997817. The next prime is 6997843. The reversal of 6997841 is 1487996.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5382400 + 1615441 = 2320^2 + 1271^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6997841 is a prime.

It is a super-2 number, since 2×6997841² = 97939557322562, which contains 22 as substring.

Together with 6997843, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 6997792 and 6997801.

It is not a weakly prime, because it can be changed into another prime (6997843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3498920 + 3498921.

It is an arithmetic number, because the mean of its divisors is an integer number (3498921).

Almost surely, 2^6997841 is an apocalyptic number.

It is an amenable number.

6997841 is a deficient number, since it is larger than the sum of its proper divisors (1).

6997841 is an equidigital number, since it uses as much as digits as its factorization.

6997841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 44.

The square root of 6997841 is about 2645.3432669504. The cubic root of 6997841 is about 191.2734495006.

The spelling of 6997841 in words is "six million, nine hundred ninety-seven thousand, eight hundred forty-one".