863244 has 24 divisors (see below), whose sum is σ = 2238320. Its totient is φ = 287712.

The previous prime is 863231. The next prime is 863251. The reversal of 863244 is 442368.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3889 + ... + 4104.

2⁸⁶³²⁴⁴ is an apocalyptic number.

It is an amenable number.

863244 is an abundant number, since it is smaller than the sum of its proper divisors (1375076).

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

863244 is a wasteful number, since it uses less digits than its factorization.

863244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8006 (or 7998 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 863244 is about 929.1092508419. The cubic root of 863244 is about 95.2162754934.

The spelling of 863244 in words is "eight hundred sixty-three thousand, two hundred forty-four".