809163 has 16 divisors (see below), whose sum is σ = 1251840. Its totient is φ = 515592.

The previous prime is 809147. The next prime is 809173. The reversal of 809163 is 361908.

809163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 809163 - 2⁴ = 809147 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (809143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31 + ... + 1272.

It is an arithmetic number, because the mean of its divisors is an integer number (78240).

2⁸⁰⁹¹⁶³ is an apocalyptic number.

809163 is a deficient number, since it is larger than the sum of its proper divisors (442677).

809163 is a wasteful number, since it uses less digits than its factorization.

809163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335 (or 1329 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 809163 is about 899.5348798129. The cubic root of 809163 is about 93.1848560436.

The spelling of 809163 in words is "eight hundred nine thousand, one hundred sixty-three".