1028611 has 4 divisors (see below), whose sum is σ = 1061824. Its totient is φ = 995400.

The previous prime is 1028597. The next prime is 1028617. The reversal of 1028611 is 1168201.

1028611 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1168201 = 37 ⋅31573.

It is a cyclic number.

It is not a de Polignac number, because 1028611 - 2⁵ = 1028579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1028617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16560 + ... + 16621.

It is an arithmetic number, because the mean of its divisors is an integer number (265456).

2^1028611 is an apocalyptic number.

1028611 is a deficient number, since it is larger than the sum of its proper divisors (33213).

1028611 is an equidigital number, since it uses as much as digits as its factorization.

1028611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33212.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 1028611 is about 1014.2046144640. The cubic root of 1028611 is about 100.9447464341.

The spelling of 1028611 in words is "one million, twenty-eight thousand, six hundred eleven".