809164 has 6 divisors (see below), whose sum is σ = 1416044. Its totient is φ = 404580.

The previous prime is 809147. The next prime is 809173. The reversal of 809164 is 461908.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101142 + ... + 101149.

2⁸⁰⁹¹⁶⁴ is an apocalyptic number.

It is an amenable number.

809164 is a deficient number, since it is larger than the sum of its proper divisors (606880).

809164 is a wasteful number, since it uses less digits than its factorization.

809164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202295 (or 202293 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 809164 is about 899.5354356555. The cubic root of 809164 is about 93.1848944309.

The spelling of 809164 in words is "eight hundred nine thousand, one hundred sixty-four".