854789 has 8 divisors (see below), whose sum is σ = 940800. Its totient is φ = 771696.

The previous prime is 854771. The next prime is 854801. The reversal of 854789 is 987458.

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

It is a cyclic number.

It is not a de Polignac number, because 854789 - 2⁸ = 854533 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (854729) 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, 89 + ... + 1310.

It is an arithmetic number, because the mean of its divisors is an integer number (117600).

2⁸⁵⁴⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

854789 is a deficient number, since it is larger than the sum of its proper divisors (86011).

854789 is a wasteful number, since it uses less digits than its factorization.

854789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459.

The product of its digits is 80640, while the sum is 41.

The square root of 854789 is about 924.5479976724. The cubic root of 854789 is about 94.9043913457.

The spelling of 854789 in words is "eight hundred fifty-four thousand, seven hundred eighty-nine".