5681686 has 8 divisors (see below), whose sum is σ = 8605584. Its totient is φ = 2813160.

The previous prime is 5681647. The next prime is 5681693. The reversal of 5681686 is 6861865.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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, 13585 + ... + 13996.

It is an arithmetic number, because the mean of its divisors is an integer number (1075698).

Almost surely, 2^5681686 is an apocalyptic number.

5681686 is a deficient number, since it is larger than the sum of its proper divisors (2923898).

5681686 is a wasteful number, since it uses less digits than its factorization.

5681686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27686.

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

The square root of 5681686 is about 2383.6287462606. The cubic root of 5681686 is about 178.4400801111.

The spelling of 5681686 in words is "five million, six hundred eighty-one thousand, six hundred eighty-six".