6981841 has 2 divisors, whose sum is σ = 6981842. Its totient is φ = 6981840.

The previous prime is 6981829. The next prime is 6981847. The reversal of 6981841 is 1481896.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6760000 + 221841 = 2600^2 + 471^2 .

It is a cyclic number.

It is not a de Polignac number, because 6981841 - 2⁹ = 6981329 is a prime.

It is a super-2 number, since 2×6981841² = 97492207498562, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6981841.

It is not a weakly prime, because it can be changed into another prime (6981847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3490920 + 3490921.

It is an arithmetic number, because the mean of its divisors is an integer number (3490921).

Almost surely, 2^6981841 is an apocalyptic number.

It is an amenable number.

6981841 is a deficient number, since it is larger than the sum of its proper divisors (1).

6981841 is an equidigital number, since it uses as much as digits as its factorization.

6981841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 37.

The square root of 6981841 is about 2642.3173541420. The cubic root of 6981841 is about 191.1275611429.

Subtracting from 6981841 its reverse (1481896), we obtain a palindrome (5499945).

The spelling of 6981841 in words is "six million, nine hundred eighty-one thousand, eight hundred forty-one".