864852 has 24 divisors (see below), whose sum is σ = 2041536. Its totient is φ = 284928.

The previous prime is 864817. The next prime is 864883. The reversal of 864852 is 258468.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 864852.

It is an unprimeable number.

864852 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, 793 + ... + 1535.

It is an arithmetic number, because the mean of its divisors is an integer number (85064).

2⁸⁶⁴⁸⁵² is an apocalyptic number.

It is an amenable number.

864852 is an abundant number, since it is smaller than the sum of its proper divisors (1176684).

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

864852 is a wasteful number, since it uses less digits than its factorization.

864852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847 (or 845 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 864852 is about 929.9741931903. The cubic root of 864852 is about 95.2753599093.

The spelling of 864852 in words is "eight hundred sixty-four thousand, eight hundred fifty-two".