6985081 has 2 divisors, whose sum is σ = 6985082. Its totient is φ = 6985080.

The previous prime is 6985073. The next prime is 6985133. The reversal of 6985081 is 1805896.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6677056 + 308025 = 2584^2 + 555^2 .

It is a cyclic number.

It is not a de Polignac number, because 6985081 - 2³ = 6985073 is a prime.

It is a super-3 number, since 3×6985081³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 6985081.

It is not a weakly prime, because it can be changed into another prime (6985001) 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, 3492540 + 3492541.

It is an arithmetic number, because the mean of its divisors is an integer number (3492541).

Almost surely, 2^6985081 is an apocalyptic number.

It is an amenable number.

6985081 is a deficient number, since it is larger than the sum of its proper divisors (1).

6985081 is an equidigital number, since it uses as much as digits as its factorization.

6985081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 6985081 is about 2642.9303812246. The cubic root of 6985081 is about 191.1571215187.

The spelling of 6985081 in words is "six million, nine hundred eighty-five thousand, eighty-one".