5805681 has 8 divisors (see below), whose sum is σ = 8846784. Its totient is φ = 3317520.

The previous prime is 5805671. The next prime is 5805689. The reversal of 5805681 is 1865085.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5805681 - 2¹⁸ = 5543537 is a prime.

It is a super-2 number, since 2×5805681² = 67411863747522, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5805689) 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 7 ways as a sum of consecutive naturals, for example, 138210 + ... + 138251.

It is an arithmetic number, because the mean of its divisors is an integer number (1105848).

Almost surely, 2^5805681 is an apocalyptic number.

It is an amenable number.

5805681 is a deficient number, since it is larger than the sum of its proper divisors (3041103).

5805681 is a wasteful number, since it uses less digits than its factorization.

5805681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276471.

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 5805681 is about 2409.4980805139. The cubic root of 5805681 is about 179.7288200527.

The spelling of 5805681 in words is "five million, eight hundred five thousand, six hundred eighty-one".