840853 has 8 divisors (see below), whose sum is σ = 919296. Its totient is φ = 764400.

The previous prime is 840841. The next prime is 840859. The reversal of 840853 is 358048.

840853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 840853 - 2⁵ = 840821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840859) 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, 468 + ... + 1378.

It is an arithmetic number, because the mean of its divisors is an integer number (114912).

2⁸⁴⁰⁸⁵³ is an apocalyptic number.

It is an amenable number.

840853 is a deficient number, since it is larger than the sum of its proper divisors (78443).

840853 is a wasteful number, since it uses less digits than its factorization.

840853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 840853 is about 916.9803705642. The cubic root of 840853 is about 94.3858068411.

The spelling of 840853 in words is "eight hundred forty thousand, eight hundred fifty-three".