864383 has 4 divisors (see below), whose sum is σ = 930888. Its totient is φ = 797880.

The previous prime is 864379. The next prime is 864407. The reversal of 864383 is 383468.

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

It is a cyclic number.

It is not a de Polignac number, because 864383 - 2² = 864379 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864323) 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, 33233 + ... + 33258.

It is an arithmetic number, because the mean of its divisors is an integer number (232722).

2⁸⁶⁴³⁸³ is an apocalyptic number.

864383 is a deficient number, since it is larger than the sum of its proper divisors (66505).

864383 is a wasteful number, since it uses less digits than its factorization.

864383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66504.

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

The square root of 864383 is about 929.7220014607. The cubic root of 864383 is about 95.2581345253.

The spelling of 864383 in words is "eight hundred sixty-four thousand, three hundred eighty-three".