6984581 has 2 divisors, whose sum is σ = 6984582. Its totient is φ = 6984580.

The previous prime is 6984559. The next prime is 6984587. The reversal of 6984581 is 1854896.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6002500 + 982081 = 2450^2 + 991^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6984581 is a prime.

It is a super-2 number, since 2×6984581² = 97568743491122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6984587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3492290 + 3492291.

It is an arithmetic number, because the mean of its divisors is an integer number (3492291).

Almost surely, 2^6984581 is an apocalyptic number.

It is an amenable number.

6984581 is a deficient number, since it is larger than the sum of its proper divisors (1).

6984581 is an equidigital number, since it uses as much as digits as its factorization.

6984581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 41.

The square root of 6984581 is about 2642.8357875585. The cubic root of 6984581 is about 191.1525603289.

The spelling of 6984581 in words is "six million, nine hundred eighty-four thousand, five hundred eighty-one".