809994 has 8 divisors (see below), whose sum is σ = 1620000. Its totient is φ = 269996.

The previous prime is 809993. The next prime is 810013. The reversal of 809994 is 499908.

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

809994 is an admirable number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 809994.

It is not an unprimeable number, because it can be changed into a prime (809993) 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, 67494 + ... + 67505.

It is an arithmetic number, because the mean of its divisors is an integer number (202500).

2⁸⁰⁹⁹⁹⁴ is an apocalyptic number.

809994 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

809994 is a wasteful number, since it uses less digits than its factorization.

809994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135004.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 809994 is about 899.9966666605. The cubic root of 809994 is about 93.2167450127.

It can be divided in two parts, 80999 and 4, that added together give a triangular number (81003 = T₄₀₂).

The spelling of 809994 in words is "eight hundred nine thousand, nine hundred ninety-four".