5681845 has 16 divisors (see below), whose sum is σ = 7468272. Its totient is φ = 4124160.

The previous prime is 5681803. The next prime is 5681861. The reversal of 5681845 is 5481865.

It can be written as a sum of positive squares in 8 ways, for example, as 815409 + 4866436 = 903^2 + 2206^2 .

It is not a de Polignac number, because 5681845 - 2⁷ = 5681717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3249 + ... + 4681.

It is an arithmetic number, because the mean of its divisors is an integer number (466767).

Almost surely, 2^5681845 is an apocalyptic number.

It is an amenable number.

5681845 is a deficient number, since it is larger than the sum of its proper divisors (1786427).

5681845 is a wasteful number, since it uses less digits than its factorization.

5681845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512.

The product of its digits is 38400, while the sum is 37.

The square root of 5681845 is about 2383.6620985366. The cubic root of 5681845 is about 178.4417446234.

The spelling of 5681845 in words is "five million, six hundred eighty-one thousand, eight hundred forty-five".