861232 has 20 divisors (see below), whose sum is σ = 1757080. Its totient is φ = 407808.

The previous prime is 861221. The next prime is 861239. The reversal of 861232 is 232168.

It is not an unprimeable number, because it can be changed into a prime (861239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1113 + ... + 1720.

It is an arithmetic number, because the mean of its divisors is an integer number (87854).

2⁸⁶¹²³² is an apocalyptic number.

It is an amenable number.

861232 is an abundant number, since it is smaller than the sum of its proper divisors (895848).

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

861232 is a wasteful number, since it uses less digits than its factorization.

861232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2860 (or 2854 counting only the distinct ones).

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

The square root of 861232 is about 928.0258617086. The cubic root of 861232 is about 95.1422430542.

The spelling of 861232 in words is "eight hundred sixty-one thousand, two hundred thirty-two".