1030809 has 8 divisors (see below), whose sum is σ = 1480192. Its totient is φ = 634320.

The previous prime is 1030801. The next prime is 1030811. The reversal of 1030809 is 9080301.

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

It is not a de Polignac number, because 1030809 - 2³ = 1030801 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1030801) 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 7 ways as a sum of consecutive naturals, for example, 13177 + ... + 13254.

It is an arithmetic number, because the mean of its divisors is an integer number (185024).

2^1030809 is an apocalyptic number.

It is an amenable number.

1030809 is a deficient number, since it is larger than the sum of its proper divisors (449383).

1030809 is a wasteful number, since it uses less digits than its factorization.

1030809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26447.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1030809 is about 1015.2876439709. The cubic root of 1030809 is about 101.0165969523.

The spelling of 1030809 in words is "one million, thirty thousand, eight hundred nine".