5678581 has 2 divisors, whose sum is σ = 5678582. Its totient is φ = 5678580.

The previous prime is 5678531. The next prime is 5678593. The reversal of 5678581 is 1858765.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4165681 + 1512900 = 2041^2 + 1230^2 .

It is a cyclic number.

It is not a de Polignac number, because 5678581 - 2⁹ = 5678069 is a prime.

It is a super-2 number, since 2×5678581² = 64492564347122, which contains 22 as substring.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a zygodrome in base 4.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5678521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2839290 + 2839291.

It is an arithmetic number, because the mean of its divisors is an integer number (2839291).

Almost surely, 2^5678581 is an apocalyptic number.

It is an amenable number.

5678581 is a deficient number, since it is larger than the sum of its proper divisors (1).

5678581 is an equidigital number, since it uses as much as digits as its factorization.

5678581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67200, while the sum is 40.

The square root of 5678581 is about 2382.9773393803. The cubic root of 5678581 is about 178.4075687868.

The spelling of 5678581 in words is "five million, six hundred seventy-eight thousand, five hundred eighty-one".