864833 has 4 divisors (see below), whose sum is σ = 869508. Its totient is φ = 860160.

The previous prime is 864817. The next prime is 864883. The reversal of 864833 is 338468.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 446224 + 418609 = 668^2 + 647^2 .

It is a cyclic number.

It is not a de Polignac number, because 864833 - 2⁴ = 864817 is a prime.

It is a super-2 number, since 2×864833² = 1495872235778, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 864833.

It is not an unprimeable number, because it can be changed into a prime (864803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2048 + ... + 2433.

It is an arithmetic number, because the mean of its divisors is an integer number (217377).

2⁸⁶⁴⁸³³ is an apocalyptic number.

It is an amenable number.

864833 is a deficient number, since it is larger than the sum of its proper divisors (4675).

864833 is a wasteful number, since it uses less digits than its factorization.

864833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4674.

The product of its digits is 13824, while the sum is 32.

The square root of 864833 is about 929.9639777970. The cubic root of 864833 is about 95.2746622003.

The spelling of 864833 in words is "eight hundred sixty-four thousand, eight hundred thirty-three".