5781680 has 20 divisors (see below), whose sum is σ = 13442592. Its totient is φ = 2312640.

The previous prime is 5781661. The next prime is 5781689. The reversal of 5781680 is 861875.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 5781680.

It is not an unprimeable number, because it can be changed into a prime (5781689) 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, 36056 + ... + 36215.

Almost surely, 2^5781680 is an apocalyptic number.

It is an amenable number.

5781680 is an abundant number, since it is smaller than the sum of its proper divisors (7660912).

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

5781680 is a wasteful number, since it uses less digits than its factorization.

5781680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72284 (or 72278 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 5781680 is about 2404.5124245884. The cubic root of 5781680 is about 179.4808084116.

The spelling of 5781680 in words is "five million, seven hundred eighty-one thousand, six hundred eighty".