809344 has 16 divisors (see below), whose sum is σ = 1612620. Its totient is φ = 404608.

The previous prime is 809339. The next prime is 809357. The reversal of 809344 is 443908.

It is a tau number, because it is divible by the number of its divisors (16).

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3034 + ... + 3289.

2⁸⁰⁹³⁴⁴ is an apocalyptic number.

It is an amenable number.

809344 is a deficient number, since it is larger than the sum of its proper divisors (803276).

809344 is an equidigital number, since it uses as much as digits as its factorization.

809344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6337 (or 6325 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 809344 is about 899.6354817369. The cubic root of 809344 is about 93.1918036349.

The spelling of 809344 in words is "eight hundred nine thousand, three hundred forty-four".