809313 has 8 divisors (see below), whose sum is σ = 1090176. Its totient is φ = 534000.

The previous prime is 809309. The next prime is 809323. The reversal of 809313 is 313908.

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

It is not a de Polignac number, because 809313 - 2² = 809309 is a prime.

It is a Curzon number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (809323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1033 + ... + 1638.

It is an arithmetic number, because the mean of its divisors is an integer number (136272).

2⁸⁰⁹³¹³ is an apocalyptic number.

It is an amenable number.

809313 is a deficient number, since it is larger than the sum of its proper divisors (280863).

809313 is a wasteful number, since it uses less digits than its factorization.

809313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 809313 is about 899.6182523715. The cubic root of 809313 is about 93.1906137895.

The spelling of 809313 in words is "eight hundred nine thousand, three hundred thirteen".