864206 has 8 divisors (see below), whose sum is σ = 1481520. Its totient is φ = 370368.

The previous prime is 864203. The next prime is 864211. The reversal of 864206 is 602468.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30851 + ... + 30878.

It is an arithmetic number, because the mean of its divisors is an integer number (185190).

2⁸⁶⁴²⁰⁶ is an apocalyptic number.

864206 is a deficient number, since it is larger than the sum of its proper divisors (617314).

864206 is a wasteful number, since it uses less digits than its factorization.

864206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61738.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 864206 is about 929.6268068424. The cubic root of 864206 is about 95.2516320679.

The spelling of 864206 in words is "eight hundred sixty-four thousand, two hundred six".