805894 has 4 divisors (see below), whose sum is σ = 1208844. Its totient is φ = 402946.

The previous prime is 805891. The next prime is 805901. The reversal of 805894 is 498508.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201472 + ... + 201475.

It is an arithmetic number, because the mean of its divisors is an integer number (302211).

2⁸⁰⁵⁸⁹⁴ is an apocalyptic number.

805894 is a deficient number, since it is larger than the sum of its proper divisors (402950).

805894 is a wasteful number, since it uses less digits than its factorization.

805894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402949.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 805894 is about 897.7159907231. The cubic root of 805894 is about 93.0591984449.

The spelling of 805894 in words is "eight hundred five thousand, eight hundred ninety-four".