5781686 has 8 divisors (see below), whose sum is σ = 8952384. Its totient is φ = 2797560.

The previous prime is 5781661. The next prime is 5781689. The reversal of 5781686 is 6861875.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5781689) 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, 46565 + ... + 46688.

It is an arithmetic number, because the mean of its divisors is an integer number (1119048).

Almost surely, 2^5781686 is an apocalyptic number.

5781686 is a deficient number, since it is larger than the sum of its proper divisors (3170698).

5781686 is a wasteful number, since it uses less digits than its factorization.

5781686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93286.

The product of its digits is 80640, while the sum is 41.

The square root of 5781686 is about 2404.5136722423. The cubic root of 5781686 is about 179.4808704976.

The spelling of 5781686 in words is "five million, seven hundred eighty-one thousand, six hundred eighty-six".