1028275 has 6 divisors (see below), whose sum is σ = 1275092. Its totient is φ = 822600.

The previous prime is 1028273. The next prime is 1028303. The reversal of 1028275 is 5728201.

It is not a de Polignac number, because 1028275 - 2¹ = 1028273 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 41131 = 1028275 / (1 + 0 + 2 + 8 + 2 + 7 + 5).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1028273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20541 + ... + 20590.

2^1028275 is an apocalyptic number.

1028275 is a deficient number, since it is larger than the sum of its proper divisors (246817).

1028275 is an equidigital number, since it uses as much as digits as its factorization.

1028275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41141 (or 41136 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 1028275 is about 1014.0389538869. The cubic root of 1028275 is about 100.9337538987.

The spelling of 1028275 in words is "one million, twenty-eight thousand, two hundred seventy-five".