853940 has 12 divisors (see below), whose sum is σ = 1793316. Its totient is φ = 341568.

The previous prime is 853933. The next prime is 853949. The reversal of 853940 is 49358.

853940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 204304 + 649636 = 452^2 + 806^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853949) 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, 21329 + ... + 21368.

It is an arithmetic number, because the mean of its divisors is an integer number (149443).

2⁸⁵³⁹⁴⁰ is an apocalyptic number.

It is an amenable number.

853940 is an abundant number, since it is smaller than the sum of its proper divisors (939376).

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

853940 is a wasteful number, since it uses less digits than its factorization.

853940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42706 (or 42704 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 853940 is about 924.0887403275. The cubic root of 853940 is about 94.8729603847.

The spelling of 853940 in words is "eight hundred fifty-three thousand, nine hundred forty".