863144 has 16 divisors (see below), whose sum is σ = 1689120. Its totient is φ = 412720.

The previous prime is 863143. The next prime is 863153. The reversal of 863144 is 441368.

863144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 863144.

It is not an unprimeable number, because it can be changed into a prime (863143) 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, 2162 + ... + 2529.

It is an arithmetic number, because the mean of its divisors is an integer number (105570).

2⁸⁶³¹⁴⁴ is an apocalyptic number.

It is an amenable number.

863144 is a deficient number, since it is larger than the sum of its proper divisors (825976).

863144 is a wasteful number, since it uses less digits than its factorization.

863144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4720 (or 4716 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 863144 is about 929.0554342987. The cubic root of 863144 is about 95.2125986669.

The spelling of 863144 in words is "eight hundred sixty-three thousand, one hundred forty-four".