5656686 has 16 divisors (see below), whose sum is σ = 12929664. Its totient is φ = 1616184.

The previous prime is 5656649. The next prime is 5656691. The reversal of 5656686 is 6866565.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 134683 = 5656686 / (5 + 6 + 5 + 6 + 6 + 8 + 6).

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 7 ways as a sum of consecutive naturals, for example, 67300 + ... + 67383.

It is an arithmetic number, because the mean of its divisors is an integer number (808104).

Almost surely, 2^5656686 is an apocalyptic number.

5656686 is an abundant number, since it is smaller than the sum of its proper divisors (7272978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5656686 is a wasteful number, since it uses less digits than its factorization.

5656686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134695.

The product of its digits is 259200, while the sum is 42.

The square root of 5656686 is about 2378.3788596437. The cubic root of 5656686 is about 178.1779771016.

The spelling of 5656686 in words is "five million, six hundred fifty-six thousand, six hundred eighty-six".