5866681 has 4 divisors (see below), whose sum is σ = 5991552. Its totient is φ = 5741812.

The previous prime is 5866661. The next prime is 5866691. The reversal of 5866681 is 1866685.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5866681 - 2¹¹ = 5864633 is a prime.

It is a super-2 number, since 2×5866681² = 68835891911522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5866631) 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 in 3 ways as a sum of consecutive naturals, for example, 62365 + ... + 62458.

It is an arithmetic number, because the mean of its divisors is an integer number (1497888).

Almost surely, 2^5866681 is an apocalyptic number.

It is an amenable number.

5866681 is a deficient number, since it is larger than the sum of its proper divisors (124871).

5866681 is a wasteful number, since it uses less digits than its factorization.

5866681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124870.

The product of its digits is 69120, while the sum is 40.

The square root of 5866681 is about 2422.1232421163. The cubic root of 5866681 is about 180.3560954804.

The spelling of 5866681 in words is "five million, eight hundred sixty-six thousand, six hundred eighty-one".