809323405 has 8 divisors (see below), whose sum is σ = 1059477984. Its totient is φ = 588598800.

The previous prime is 809323393. The next prime is 809323423. The reversal of 809323405 is 504323908.

It is a happy number.

809323405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 809323405 - 2¹⁵ = 809290637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7357431 + ... + 7357540.

It is an arithmetic number, because the mean of its divisors is an integer number (132434748).

Almost surely, 2^809323405 is an apocalyptic number.

It is an amenable number.

809323405 is a deficient number, since it is larger than the sum of its proper divisors (250154579).

809323405 is a wasteful number, since it uses less digits than its factorization.

809323405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14714987.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 809323405 is about 28448.6098957401. The cubic root of 809323405 is about 931.9101315872.

The spelling of 809323405 in words is "eight hundred nine million, three hundred twenty-three thousand, four hundred five".