5686644 has 12 divisors (see below), whose sum is σ = 13268864. Its totient is φ = 1895544.

The previous prime is 5686633. The next prime is 5686649. The reversal of 5686644 is 4466865.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×5686644³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5686649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236932 + ... + 236955.

Almost surely, 2^5686644 is an apocalyptic number.

It is an amenable number.

5686644 is an abundant number, since it is smaller than the sum of its proper divisors (7582220).

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

5686644 is a wasteful number, since it uses less digits than its factorization.

5686644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473894 (or 473892 counting only the distinct ones).

The product of its digits is 138240, while the sum is 39.

The square root of 5686644 is about 2384.6685304251. The cubic root of 5686644 is about 178.4919689754.

The spelling of 5686644 in words is "five million, six hundred eighty-six thousand, six hundred forty-four".