5786981 has 2 divisors, whose sum is σ = 5786982. Its totient is φ = 5786980.

The previous prime is 5786971. The next prime is 5786999. The reversal of 5786981 is 1896875.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4264225 + 1522756 = 2065^2 + 1234^2 .

It is a cyclic number.

It is not a de Polignac number, because 5786981 - 2⁶ = 5786917 is a prime.

It is a super-2 number, since 2×5786981² = 66978298188722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5786971) 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, 2893490 + 2893491.

It is an arithmetic number, because the mean of its divisors is an integer number (2893491).

Almost surely, 2^5786981 is an apocalyptic number.

It is an amenable number.

5786981 is a deficient number, since it is larger than the sum of its proper divisors (1).

5786981 is an equidigital number, since it uses as much as digits as its factorization.

5786981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 44.

The square root of 5786981 is about 2405.6144745158. The cubic root of 5786981 is about 179.5356446724.

The spelling of 5786981 in words is "five million, seven hundred eighty-six thousand, nine hundred eighty-one".