864276 has 24 divisors (see below), whose sum is σ = 2304960. Its totient is φ = 246912.

The previous prime is 864251. The next prime is 864277. The reversal of 864276 is 672468.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864277) by changing a digit.

864276 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 5061 + ... + 5228.

It is an arithmetic number, because the mean of its divisors is an integer number (96040).

2⁸⁶⁴²⁷⁶ is an apocalyptic number.

It is an amenable number.

864276 is an abundant number, since it is smaller than the sum of its proper divisors (1440684).

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

864276 is a wasteful number, since it uses less digits than its factorization.

864276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10303 (or 10301 counting only the distinct ones).

The product of its digits is 16128, while the sum is 33.

The square root of 864276 is about 929.6644555967. The cubic root of 864276 is about 95.2542037673.

The spelling of 864276 in words is "eight hundred sixty-four thousand, two hundred seventy-six".