1028743 has 4 divisors (see below), whose sum is σ = 1036728. Its totient is φ = 1020760.

The previous prime is 1028737. The next prime is 1028747. The reversal of 1028743 is 3478201.

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

It is a cyclic number.

It is not a de Polignac number, because 1028743 - 2⁹ = 1028231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3796 + ... + 4057.

It is an arithmetic number, because the mean of its divisors is an integer number (259182).

2^1028743 is an apocalyptic number.

1028743 is a deficient number, since it is larger than the sum of its proper divisors (7985).

1028743 is an equidigital number, since it uses as much as digits as its factorization.

1028743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7984.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 1028743 is about 1014.2696880022. The cubic root of 1028743 is about 100.9490642752.

It can be divided in two parts, 1028 and 743, that added together give a palindrome (1771).

The spelling of 1028743 in words is "one million, twenty-eight thousand, seven hundred forty-three".