5781443 has 2 divisors, whose sum is σ = 5781444. Its totient is φ = 5781442.

The previous prime is 5781439. The next prime is 5781467. The reversal of 5781443 is 3441875.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5781443 - 2² = 5781439 is a prime.

It is not a weakly prime, because it can be changed into another prime (5781143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2890721 + 2890722.

It is an arithmetic number, because the mean of its divisors is an integer number (2890722).

Almost surely, 2^5781443 is an apocalyptic number.

5781443 is a deficient number, since it is larger than the sum of its proper divisors (1).

5781443 is an equidigital number, since it uses as much as digits as its factorization.

5781443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 32.

The square root of 5781443 is about 2404.4631417429. The cubic root of 5781443 is about 179.4783559795.

The spelling of 5781443 in words is "five million, seven hundred eighty-one thousand, four hundred forty-three".