5621843 has 4 divisors (see below), whose sum is σ = 5676528. Its totient is φ = 5567160.

The previous prime is 5621827. The next prime is 5621857. The reversal of 5621843 is 3481265.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3481265 = 5 ⋅696253.

It is a cyclic number.

It is not a de Polignac number, because 5621843 - 2⁴ = 5621827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5621813) 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 3 ways as a sum of consecutive naturals, for example, 27188 + ... + 27393.

It is an arithmetic number, because the mean of its divisors is an integer number (1419132).

Almost surely, 2^5621843 is an apocalyptic number.

5621843 is a deficient number, since it is larger than the sum of its proper divisors (54685).

5621843 is a wasteful number, since it uses less digits than its factorization.

5621843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54684.

The product of its digits is 5760, while the sum is 29.

The square root of 5621843 is about 2371.0425976772. The cubic root of 5621843 is about 177.8113875546.

The spelling of 5621843 in words is "five million, six hundred twenty-one thousand, eight hundred forty-three".