5819681 has 24 divisors (see below), whose sum is σ = 7315200. Its totient is φ = 4625208.

The previous prime is 5819677. The next prime is 5819683. The reversal of 5819681 is 1869185.

It is not a de Polignac number, because 5819681 - 2² = 5819677 is a prime.

It is a super-2 number, since 2×5819681² = 67737373883522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5819683) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123800 + ... + 123846.

It is an arithmetic number, because the mean of its divisors is an integer number (304800).

Almost surely, 2^5819681 is an apocalyptic number.

It is an amenable number.

5819681 is a deficient number, since it is larger than the sum of its proper divisors (1495519).

5819681 is an equidigital number, since it uses as much as digits as its factorization.

5819681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106 (or 73 counting only the distinct ones).

The product of its digits is 17280, while the sum is 38.

The square root of 5819681 is about 2412.4015005799. The cubic root of 5819681 is about 179.8731719748.

The spelling of 5819681 in words is "five million, eight hundred nineteen thousand, six hundred eighty-one".