1028001 has 16 divisors (see below), whose sum is σ = 1512896. Its totient is φ = 616896.

The previous prime is 1027987. The next prime is 1028003. The reversal of 1028001 is 1008201.

It is a happy number.

It is not a de Polignac number, because 1028001 - 2⁵ = 1027969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1028003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1371 + ... + 1983.

It is an arithmetic number, because the mean of its divisors is an integer number (94556).

2^1028001 is an apocalyptic number.

It is an amenable number.

1028001 is a deficient number, since it is larger than the sum of its proper divisors (484895).

1028001 is a wasteful number, since it uses less digits than its factorization.

1028001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1028001 is about 1013.9038415945. The cubic root of 1028001 is about 100.9247879750.

The spelling of 1028001 in words is "one million, twenty-eight thousand, one".