1028783 has 16 divisors (see below), whose sum is σ = 1244160. Its totient is φ = 832416.

The previous prime is 1028777. The next prime is 1028803. The reversal of 1028783 is 3878201.

It is a cyclic number.

It is not a de Polignac number, because 1028783 - 2¹⁰ = 1027759 is a prime.

It is a super-2 number, since 2×1028783² = 2116788922178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17408 + ... + 17466.

It is an arithmetic number, because the mean of its divisors is an integer number (77760).

2^1028783 is an apocalyptic number.

1028783 is a deficient number, since it is larger than the sum of its proper divisors (215377).

1028783 is an equidigital number, since it uses as much as digits as its factorization.

1028783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 1028783 is about 1014.2894064319. The cubic root of 1028783 is about 100.9503726390.

The spelling of 1028783 in words is "one million, twenty-eight thousand, seven hundred eighty-three".