1336809 has 8 divisors (see below), whose sum is σ = 1792512. Its totient is φ = 886160.

The previous prime is 1336801. The next prime is 1336817. The reversal of 1336809 is 9086331.

It is an interprime number because it is at equal distance from previous prime (1336801) and next prime (1336817).

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 1336809 - 2³ = 1336801 is a prime.

1336809 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1336801) 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, 594 + ... + 1739.

It is an arithmetic number, because the mean of its divisors is an integer number (224064).

2^1336809 is an apocalyptic number.

It is an amenable number.

1336809 is a deficient number, since it is larger than the sum of its proper divisors (455703).

1336809 is a wasteful number, since it uses less digits than its factorization.

1336809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2527.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 1336809 is about 1156.2045666749. The cubic root of 1336809 is about 110.1597953036.

It can be divided in two parts, 1336 and 809, that added together give a triangular number (2145 = T₆₅).

The spelling of 1336809 in words is "one million, three hundred thirty-six thousand, eight hundred nine".