1028806 has 8 divisors (see below), whose sum is σ = 1634040. Its totient is φ = 484128.

The previous prime is 1028803. The next prime is 1028809. The reversal of 1028806 is 6088201.

It is an interprime number because it is at equal distance from previous prime (1028803) and next prime (1028809).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028803) 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, 15096 + ... + 15163.

It is an arithmetic number, because the mean of its divisors is an integer number (204255).

2^1028806 is an apocalyptic number.

1028806 is the 642-nd centered pentagonal number.

1028806 is a deficient number, since it is larger than the sum of its proper divisors (605234).

1028806 is a wasteful number, since it uses less digits than its factorization.

1028806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30278.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 1028806 is about 1014.3007443554. The cubic root of 1028806 is about 100.9511249328.

The spelling of 1028806 in words is "one million, twenty-eight thousand, eight hundred six".