1028443 has 4 divisors (see below), whose sum is σ = 1107568. Its totient is φ = 949320.

The previous prime is 1028437. The next prime is 1028471. The reversal of 1028443 is 3448201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3448201 = 1447 ⋅2383.

It is a cyclic number.

It is not a de Polignac number, because 1028443 - 2⁵ = 1028411 is a prime.

It is a super-3 number, since 3×1028443³ = 3263337069764562921, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1028473) 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, 39543 + ... + 39568.

It is an arithmetic number, because the mean of its divisors is an integer number (276892).

2^1028443 is an apocalyptic number.

1028443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1028443 is a deficient number, since it is larger than the sum of its proper divisors (79125).

1028443 is an equidigital number, since it uses as much as digits as its factorization.

1028443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79124.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1028443 is about 1014.1217875581. The cubic root of 1028443 is about 100.9392504657.

The spelling of 1028443 in words is "one million, twenty-eight thousand, four hundred forty-three".