864273 has 8 divisors (see below), whose sum is σ = 1163968. Its totient is φ = 570384.

The previous prime is 864251. The next prime is 864277. The reversal of 864273 is 372468.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 864273 - 2¹³ = 856081 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 864273.

It is not an unprimeable number, because it can be changed into a prime (864277) 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 7 ways as a sum of consecutive naturals, for example, 1090 + ... + 1707.

It is an arithmetic number, because the mean of its divisors is an integer number (145496).

2⁸⁶⁴²⁷³ is an apocalyptic number.

It is an amenable number.

864273 is a deficient number, since it is larger than the sum of its proper divisors (299695).

864273 is a wasteful number, since it uses less digits than its factorization.

864273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2903.

The product of its digits is 8064, while the sum is 30.

The square root of 864273 is about 929.6628421100. The cubic root of 864273 is about 95.2540935545.

The spelling of 864273 in words is "eight hundred sixty-four thousand, two hundred seventy-three".