809353 has 4 divisors (see below), whose sum is σ = 856980. Its totient is φ = 761728.

The previous prime is 809339. The next prime is 809357. The reversal of 809353 is 353908.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 535824 + 273529 = 732^2 + 523^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-809353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (809357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23788 + ... + 23821.

It is an arithmetic number, because the mean of its divisors is an integer number (214245).

2⁸⁰⁹³⁵³ is an apocalyptic number.

It is an amenable number.

809353 is a deficient number, since it is larger than the sum of its proper divisors (47627).

809353 is a wasteful number, since it uses less digits than its factorization.

809353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47626.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 809353 is about 899.6404837489. The cubic root of 809353 is about 93.1921490682.

The spelling of 809353 in words is "eight hundred nine thousand, three hundred fifty-three".