5653823 has 4 divisors (see below), whose sum is σ = 6461520. Its totient is φ = 4846128.

The previous prime is 5653819. The next prime is 5653841. The reversal of 5653823 is 3283565.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 5653823 - 2² = 5653819 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5653823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5653223) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 403838 + ... + 403851.

It is an arithmetic number, because the mean of its divisors is an integer number (1615380).

Almost surely, 2^5653823 is an apocalyptic number.

5653823 is a deficient number, since it is larger than the sum of its proper divisors (807697).

5653823 is an equidigital number, since it uses as much as digits as its factorization.

5653823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807696.

The product of its digits is 21600, while the sum is 32.

The square root of 5653823 is about 2377.7769029074. The cubic root of 5653823 is about 178.1479118163.

The spelling of 5653823 in words is "five million, six hundred fifty-three thousand, eight hundred twenty-three".