1028801 has 4 divisors (see below), whose sum is σ = 1031472. Its totient is φ = 1026132.

The previous prime is 1028777. The next prime is 1028803. The reversal of 1028801 is 1088201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1088201 = 43 ⋅25307.

It is a cyclic number.

It is not a de Polignac number, because 1028801 - 2⁶ = 1028737 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1028803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 635 + ... + 1568.

It is an arithmetic number, because the mean of its divisors is an integer number (257868).

2^1028801 is an apocalyptic number.

It is an amenable number.

1028801 is a deficient number, since it is larger than the sum of its proper divisors (2671).

1028801 is an equidigital number, since it uses as much as digits as its factorization.

1028801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2670.

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 1028801 is about 1014.2982796002. The cubic root of 1028801 is about 100.9509613916.

The spelling of 1028801 in words is "one million, twenty-eight thousand, eight hundred one".