5681720 has 64 divisors (see below), whose sum is σ = 14364000. Its totient is φ = 2004480.

The previous prime is 5681717. The next prime is 5681729. The reversal of 5681720 is 271865.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5681729) 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 15 ways as a sum of consecutive naturals, for example, 16106 + ... + 16454.

Almost surely, 2^5681720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5681720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7182000).

5681720 is an abundant number, since it is smaller than the sum of its proper divisors (8682280).

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

5681720 is a wasteful number, since it uses less digits than its factorization.

5681720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 5681720 is about 2383.6358782331. The cubic root of 5681720 is about 178.4404360471.

The spelling of 5681720 in words is "five million, six hundred eighty-one thousand, seven hundred twenty".