5621443 has 2 divisors, whose sum is σ = 5621444. Its totient is φ = 5621442.

The previous prime is 5621437. The next prime is 5621467. The reversal of 5621443 is 3441265.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5621443 is a prime.

It is not a weakly prime, because it can be changed into another prime (5621423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2810721 + 2810722.

It is an arithmetic number, because the mean of its divisors is an integer number (2810722).

Almost surely, 2^5621443 is an apocalyptic number.

5621443 is a deficient number, since it is larger than the sum of its proper divisors (1).

5621443 is an equidigital number, since it uses as much as digits as its factorization.

5621443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 25.

The square root of 5621443 is about 2370.9582450984. The cubic root of 5621443 is about 177.8071702993.

The spelling of 5621443 in words is "five million, six hundred twenty-one thousand, four hundred forty-three".