863140 has 24 divisors (see below), whose sum is σ = 1834560. Its totient is φ = 341088.

The previous prime is 863131. The next prime is 863143. The reversal of 863140 is 41368.

863140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (863143) by changing a digit.

863140 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1851 + ... + 2269.

It is an arithmetic number, because the mean of its divisors is an integer number (76440).

2⁸⁶³¹⁴⁰ is an apocalyptic number.

It is an amenable number.

863140 is an abundant number, since it is smaller than the sum of its proper divisors (971420).

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

863140 is a wasteful number, since it uses less digits than its factorization.

863140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 863140 is about 929.0532815722. The cubic root of 863140 is about 95.2124515879.

The spelling of 863140 in words is "eight hundred sixty-three thousand, one hundred forty".