1028055 has 16 divisors (see below), whose sum is σ = 1880064. Its totient is φ = 469920.

The previous prime is 1028051. The next prime is 1028063. The reversal of 1028055 is 5508201.

It is not a de Polignac number, because 1028055 - 2² = 1028051 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028051) 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, 4791 + ... + 5000.

It is an arithmetic number, because the mean of its divisors is an integer number (117504).

2^1028055 is an apocalyptic number.

1028055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1028055 is a deficient number, since it is larger than the sum of its proper divisors (852009).

1028055 is an equidigital number, since it uses as much as digits as its factorization.

1028055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9806.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 1028055 is about 1013.9304709890. The cubic root of 1028055 is about 100.9265551079.

The spelling of 1028055 in words is "one million, twenty-eight thousand, fifty-five".