1013809 has 8 divisors (see below), whose sum is σ = 1045440. Its totient is φ = 982800.

The previous prime is 1013791. The next prime is 1013813. The reversal of 1013809 is 9083101.

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

It is a cyclic number.

It is not a de Polignac number, because 1013809 - 2⁷ = 1013681 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1013809.

It is not an unprimeable number, because it can be changed into a prime (1013819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7674 + ... + 7804.

It is an arithmetic number, because the mean of its divisors is an integer number (130680).

2^1013809 is an apocalyptic number.

It is an amenable number.

1013809 is a deficient number, since it is larger than the sum of its proper divisors (31631).

1013809 is a wasteful number, since it uses less digits than its factorization.

1013809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1013809 is about 1006.8808271091. The cubic root of 1013809 is about 100.4581973454.

The spelling of 1013809 in words is "one million, thirteen thousand, eight hundred nine".